(A) Cleavage spindles or planes are oblique to the polar axis of the zygote.
(B) Cleavage spindles or planes are at right angles to the polar axis of the zygote.
(C) The fate of blastomeres is fixed early in the development
(D) The fate of blastomeres is fixed relatively late in the development
$\begin {array} {1 1} (1)\;(B)\: and\: (D) & \quad (2)\;(A)\: and \: (C) \\ (3)\;(C)\: and \: (D) & \quad (4)\;(A)\: and \: (B) \end {array}$
