Jamboree Question of the Day - Day 58, Jan 6th 2011

Too old to bear arms himself, Frederick Douglass served as a recruiting agent, traveled through the North to exhort Black men to join the Union army.

(A) traveled through the North to exhort

(B) and he traveled through the North and exhorted

(C) and traveling through the North exhorted

(D) traveling through the North and exhorted

(E) traveling through the North and exhorting

Solution (Posted on 7th): 

The Main Clause(Cause) is that Frederick Douglass served as a recruiting agent.., the actions traveling and exhorting are done in the process of serving as an agent. (Effects) (Subordinate clauses) . Cause-Effect parallelism stays perfect with E alone. Thus, E stays.