In animals exhibiting internal fertilisation
a. There is no synchrony between the two sexes
b. The male gamete is motile
c. Number of sperms produced is very large
d. There is a significant reduction in the number of eggs produced
Choose the option with all correct statements.

• A

  a and c

• B

  a, b and d

• C

  b, c and d

• D

  a, b, c and d