Read the given statements and select the option correctly stating which ones are true (T) and which ones are false (F).
I. BCG vaccine gives protection against tuberculosis .
II. Entamoeba histolytica resides in jejunum and ileum parts of the small intestine and is more common in females than males.
III. Man is the primary host whereas sheep is the secondary host in life cycle of Ascaris lumbricoides.
IV. Chemical formula of morphine is `C_(17)H_(19)NO_(3)`.

Options

A. `{:(I,II,III,IV),(T,F,F,F):}`
B. `{:(I,II,III,IV),(T,F,F,T):}`
C. `{:(I,II,III,IV),(F,T,F,T):}`
D. `{:(I,II,III,IV),(F,T,T,T):}`

Answer

To determine which statements are true (T) and which are false (F), let's analyze each statement one by one:

### Step 1: Analyze Statement I
**Statement I:** BCG vaccine gives protection against tuberculosis.

- The BCG vaccine, which stands for Bacillus Calmette-Guérin, is indeed used to provide protection against tuberculosis (TB). Therefore, this statement is **True (T)**.

### Step 2: Analyze Statement II
**Statement II:** Entamoeba histolytica resides in jejunum and ileum parts of the small intestine and is more common in females than males.

- Entamoeba histolytica is a parasite that primarily resides in the large intestine, not the jejunum and ileum. Additionally, it is not specifically more common in females than males. Therefore, this statement is **False (F)**.

### Step 3: Analyze Statement III
**Statement III:** Man is the primary host whereas sheep is the secondary host in the life cycle of Ascaris lumbricoides.

- Ascaris lumbricoides is a parasitic roundworm that primarily infects humans and does not have a secondary host; it completes its life cycle in one host (humans). Therefore, this statement is **False (F)**.

### Step 4: Analyze Statement IV
**Statement IV:** Chemical formula of morphine is C17H19NO3.

- The chemical formula for morphine is indeed C17H19NO3. Therefore, this statement is **True (T)**.

### Summary of Findings:
- Statement I: True (T)
- Statement II: False (F)
- Statement III: False (F)
- Statement IV: True (T)

### Final Answer:
- I: T
- II: F
- III: F
- IV: T