Every delegate to the convention is a party member. Some delegates to the ... ...

Every delegate to the convention is a party member. Some delegates to the convention are government officials, and each government official who is at the convention is a speaker at the convention, as well. If the statements above are true, then which one of the following statements must be true?
(A) Every party member at the convention is a delegate to the convention.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Dec 2012 LSAT (PT68): Logical Reasoning A