Which hormone is responsible for the contraction of the uterus?

Given below are two statements.
Statement $I$ - Highest secretion of growth hormone $(GH)$ is seen till puberty.
Statement $II$ - The $GH$ is secreted continuously throughout life for repair and replacement of cells.
In the light of above statements,select the correct option given below:

Diabetes insipidus is caused due to the deficiency of

Follicle-stimulating hormone $(FSH)$ is secreted by the .....

The neurohypophysis secretes which of the following?

Prolactin activates