Identify the figure given below and the part labelled “A”.

Explanation

**Step-by-Step Solution:**

1. **Identify the Figure**: The figure presented in the question is a blastocyst. The blastocyst is an early-stage structure formed during the development of mammals after fertilization.

2. **Analyze the Components**: The blastocyst consists of two main parts: the outer layer and the inner cell mass. The outer layer is crucial for implantation into the uterine wall.

3. **Identify Part A**: The part labeled "A" in the figure is the outer layer of the blastocyst. This outer layer is known as the trophoblast.

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