What is the efficient way to accomplish this?

A Practitioner has customized a delivery for men, women and unspecified gender values. A proof personalized to each gender segment is then required to be sent to an approver prior to the delivery phase.

What is the efficient way to accomplish this?
A . Specify a Target for the proofs with the Targeting mode set to "Substitution of the address" and specify the approver for a recipient in each of the gender segments.
B . Specify an approver in the Recipient table via the Target mapping directly.
C . Create three different deliveries for each of the gender segments and define the same approver for each delivery.
D . Specify a Target for the proofs with the Targeting mode set to "Substitution of the address" and specify the approver for a recipient using Random profile.

Answer: A