Ethics - Pro Rata

Which of the following statements is FALSE? It is permissible under the Standards to allocate trades:

A) on a pro rata basis over all suitable accounts based upon account value.

B) on a pro rata basis over all suitable accounts on the basis of an advance indication of interest and indicated order size.

C) on a pro rata basis over all suitable accounts.

C

B

A

A

what’s the answer?

They went with A , we should NOT base on account value.

If C is a legit answer what does pro rata distribution mean in that context. Number of shares available/ number of accounts?

where did you find this question?