What Is the Trade-Off Between the Credibility of Alliances and Keeping

What is the trade-off between the credibility of alliances and keeping control of alliance partners?

A) The more control an ally has in forcing compliance,the less credible the alliance is.
B) The more discretion an ally has in honoring the alliance,the less credibility the alliance has.
C) The greater the integrity of the alliance partners,the less control the alliance has over those allies.
D) The more standing the alliance has internationally,the more control the alliance has.