Read the following statement having two blanks A and B in cockroach, a ring of 6 - 8 blind tubules called `ul(A)` is present at the junction of foregut and midgut while at the junction of midgut and hindgut a ring of 100 - 150 yellow coloured yellow coloured thin filamentous `ul(B)` is present.
The one correct option that fills the two blanks is

Options

A. `{:(" A B"),("Malpighian tubules hepatic caecae"):}`
B. `{:(" A B"),("fat bodies vasa efferentia"):}`
C. `{:(" A B"),("hepatic caecae Malpighian tubules"):}`
D. `{:(" A B"),("vas deferens fat bodies"):}`

Explanation

To solve the question regarding the blanks A and B in the context of the cockroach's digestive system, we will follow these steps:

### Step-by-Step Solution:

1. **Identify the first blank (A)**: The statement mentions "a ring of 6 - 8 blind tubules" present at the junction of the foregut and midgut in cockroaches. This structure is known as the **hepatic cecae**. The hepatic cecae are responsible for secreting digestive juices.

2. **Identify the second blank (B)**: The statement then refers to "a ring of 100 - 150 yellow colored thin filamentous" structures at the junction of the midgut and hindgut. These structures are called **Malpighian tubules**. They play a crucial role in the excretion of waste products from the hemolymph (the fluid equivalent to blood in insects).

3. **Combine the findings**: Based on the identification of the structures, we can fill in the blanks as follows:
- A: **Hepatic cecae**
- B: **Malpighian tubules**

### Final Answer:
The correct option that fills the two blanks is:
- A: Hepatic cecae
- B: Malpighian tubules