Assertion (A): The secretion from Bartholin's gland helps in copulation.
Reason (R): Copulation ensures fertilization of the ovum.

Options

A. Both A and R are true and R is the correct explanation for A.
B. Both A and Rare true, but R is not the correct explanation for A.
C. A is true and R is false.
D. A is false and R is true.

Explanation

### Step-by-Step Solution:

1. **Understanding the Assertion (A)**:
- The assertion states that the secretion from Bartholin's gland helps in copulation. This is true. Bartholin's glands are located near the vaginal opening in females and secrete a lubricating fluid that facilitates sexual intercourse.

2. **Understanding the Reason (R)**:
- The reason states that copulation ensures fertilization of the ovum. This statement is misleading. While copulation is necessary for fertilization, it does not guarantee it. There are many instances where copulation occurs without resulting in fertilization.

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