What is the ploidy of germ cells?

$A$ : In humans,the ovum is of the alecithal type.
$R$ : It is almost free of yolk.

The hormones secreted by the sperm are called:

Identify the Graafian follicle from the given options.

The provided image is completely unrelated to the question text. The question asks for a diagrammatic presentation of developing follicle events in the human ovary. Based on the standard biological sequence of ovarian follicle development:
$1$. Primary follicles develop into secondary follicles.
$2$. Secondary follicles develop into tertiary follicles.
$3$. Tertiary follicles develop into the Graafian (mature) follicle.
$4$. After ovulation,the ruptured follicle transforms into the corpus luteum.
Given the standard sequence,identify the correct labels for $C$ and $E$ in a typical diagram of this process.

What is the name of the layer surrounding the secondary oocyte in the fallopian tube?