Consider the following four statements (i) - (iv) and select the correct option stating which ones are true (T) and which ones are false (F)
(i) In male cockroach, genital pouch or chamber lies at the hind end of abdomen bounded dorsally by `9^(th)` and `10^(th)` terga and ventrally by the `9^(th)` sternum.
(ii) In cockroach, the haemolymph is composed of colourless plasma and haemocytes
(iii) In female cockroach each ovary is formed of a group of ten ovarian tubules or overioules, containing a chain of developing ova
(iv) In cockroach the nymph grows by moulting about 13 times to reach the adult form.

Options

A. `{:("(i) (ii) (iii) (iv)"),("F T F T"):}`
B. `{:("(i) (ii) (iii) (iv)"),("F F T T"):}`
C. `{:("(i) (ii) (iii) (iv)"),("T T F T"):}`
D. `{:("(i) (ii) (iii) (iv)"),("T F T F"):}`

Explanation

To determine the truthfulness of the four statements regarding cockroaches, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement (i)**: "In male cockroach, genital pouch or chamber lies at the hind end of abdomen bounded dorsally by 9th and 10th terga and ventrally by the 9th sternum."
- **Analysis**: This statement is true. The male cockroach does indeed have a genital pouch located at the hind end of the abdomen, and it is bounded dorsally by the 9th and 10th terga and ventrally by the 9th sternum.

2. **Statement (ii)**: "In cockroach, the haemolymph is composed of colourless plasma and haemocytes."
- **Analysis**: This statement is also true. The haemolymph in cockroaches consists of a colorless plasma and various cells known as haemocytes, which are involved in the immune response and transport of nutrients.

3. **Statement (iii)**: "In female cockroach each ovary is formed of a group of ten ovarian tubules or ovarioles, containing a chain of developing ova."
- **Analysis**: This statement is false. In female cockroaches, each ovary is actually formed of a group of eight ovarian tubules (not ten), which contain developing ova.

4. **Statement (iv)**: "In cockroach the nymph grows by moulting about 13 times to reach the adult form."
- **Analysis**: This statement is true. Cockroach nymphs undergo a series of molts (approximately 13 times) before they reach the adult stage.

### Summary of Truthfulness:
- (i) True (T)
- (ii) True (T)
- (iii) False (F)
- (iv) True (T)

### Final Result:
The correct option indicating the truthfulness of the statements is:
- (i) T
- (ii) T
- (iii) F
- (iv) T