Natural selection can lead to . . . . . . .
$(a)$ stabilisation
$(b)$ genetic drift
$(c)$ directional change
$(d)$ disruption
Choose the correct answer from the options given below:
$(A)$ $(a)$, $(b)$ and $(c)$ only
$(B)$ $(a)$, $(c)$ and $(d)$ only
$(C)$ $(a)$, $(b)$, $(c)$ and $(d)$
$(D)$ $(a)$ and $(c)$ only

• A
  $(a)$, $(b)$ and $(c)$ only
• B
  $(a)$, $(c)$ and $(d)$ only
• C
  $(a)$, $(b)$, $(c)$ and $(d)$
• D
  $(a)$ and $(c)$ only