Correct hormonal sequence in the increase of menstruation is
Estrogen, $FSH$ and progesterone
Estrogen, progesterone and $FSH$
$FSH$, progesterone and estrogen
$FSH$, estrogen and progesteron
In human female which of the following is incorrect
Arrange the events of menstrual cycle as they occur
$I.$ Secretion of $FSH$
$II.$ Growth of corpus luteum
$III.$ Growth of follicle and oogenesis
$IV.$Ovulation
$V.$ Sudden increase in level of $LH$
Cessation of menstrual cycle in the human female is known as
Lack of menstruation is caused due to
Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A$: Endometrium is necessary for implantation of blastocyst.
Reason $R$: In the absence of fertilization, the corpus luteum degenerates that causes disintegration of endometrium.
In the light of the above statements, choose the correct answer from the options given below: