The second maturation division of the mammalian ovum occurs

Ovulation occurs

Sperms formed from $4$ primary spermatocytes are

Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis?

$(a)$ It results in the formation of haploid gametes

$(b)$ Differentiation of gamete occurs after the completion of meiosis

$(c)$ Meiosis occurs continuously in a mitotically dividing stem cell population

$(d)$ It is controlled by the Luteinising hormone (LH) and FollicleStimulating Hormone (FSH) secreted by the anterior pituitary

$(e)$ It is initiated at puberty

Choose the most appropriate answer from the options given below:

$A$ -Spermatids formed from secondary spermatocytes.

$R$ -The spermatids are transformed into spermatozoa by the process called spermiogenesis.