Darcy Grafton, CFA, purchases a large block of stock on behalf of specific accounts she managed. The stock realized a significant gain in value before the close of business; so Grafton reviewed her accounts again to determine where the block shares should be allocated. According to the Standards of Practice Handbook, Grafton’s most appropriate action is to allocate the shares to:()

A．all accounts equally.

B．all accounts for which she has discretionary authority.

C．only those accounts for which the block shares were originally intended.