Read the following statements and find out the incorrect statements
(a) Glucocorticoids stimulate lipolysis and proteolysis.
(b). Glucocorticoids stimulate cellular uptake and utilisation of amino acids.
(c ). Cortisol is involved in the cardxo-vascular system as well as kidney functions.
(d). Cortisol stimulates the RBC production
(e ) Aldosterone acts mainly at the renal tubules and the reabsorption of `N^(+), K^(+)` and water and exception of phosphate ions.

Options

A. b and c
B. a and d
C. b and c
D. d and e

Explanation

To determine the incorrect statements among the provided options, let’s analyze each statement step by step:

### Step 1: Analyze Statement (a)
**Statement (a):** Glucocorticoids stimulate lipolysis and proteolysis.
**Analysis:** This statement is correct. Glucocorticoids, such as cortisol, promote the breakdown of fats (lipolysis) and proteins (proteolysis) to provide energy and substrates for gluconeogenesis.

### Step 2: Analyze Statement (b)
**Statement (b):** Glucocorticoids stimulate cellular uptake and utilization of amino acids.
**Analysis:** This statement is incorrect. Glucocorticoids actually inhibit the uptake and utilization of amino acids in cells. Instead, they promote the release of amino acids from muscle tissue into the bloodstream.

### Step 3: Analyze Statement (c)
**Statement (c):** Cortisol is involved in the cardiovascular system as well as kidney functions.
**Analysis:** This statement is correct. Cortisol plays a role in regulating blood pressure and fluid balance, thus affecting both cardiovascular and kidney functions.

### Step 4: Analyze Statement (d)
**Statement (d):** Cortisol stimulates the RBC production.
**Analysis:** This statement is correct. Cortisol can stimulate erythropoiesis (the production of red blood cells) by promoting erythropoietin production.

### Step 5: Analyze Statement (e)
**Statement (e):** Aldosterone acts mainly at the renal tubules and the reabsorption of Na⁺, K⁺, and water and exception of phosphate ions.
**Analysis:** This statement is mostly correct. Aldosterone acts on the renal tubules to promote sodium reabsorption and potassium excretion. However, it does not directly affect phosphate ions; instead, phosphate reabsorption is regulated by other hormones.

### Conclusion
Based on the analysis, the incorrect statements are:
- **(b)** Glucocorticoids stimulate cellular uptake and utilization of amino acids. (Incorrect)
- **(c)** Cortisol is involved in the cardiovascular system as well as kidney functions. (Correct)
- **(d)** Cortisol stimulates the RBC production. (Correct)
- **(e)** Aldosterone acts mainly at the renal tubules and the reabsorption of Na⁺, K⁺, and water and exception of phosphate ions. (Mostly correct)

Thus, the final answer is that **(b)** is the incorrect statement.