Which one of the following statements with regard to embryonic development in humans is correct?

Identify $X$ from figure :

Which of the following hormones is not a secretory product of human placenta?

After one month of pregnancy, the embryo's $…A….$ is formed. By the end of the $…..B…$ month of pregnancy, the foetus develops limbs and digits. By the end of $\ldots$… most of the major organ systems are formed for example, the limbs and external genital organs are well-developed. By the end of $…D….$ the body is covered with fine hair, eyelids separate, and eyelashes are formed. Here$ A$ and $D$ refers to

The given figure shows the human foetus within the uterus with few structures marked as $A,\,B,\,C$ and $D$.

Which of the following options shows the correct labeling ?