What Was the Main Weakness of the Frankfurt Parliament

What was the main weakness of the Frankfurt Parliament?

A) Its leaders were famously corrupt,spending millions of dollars of taxpayer money on frivolities.
B) It suffered from a lack of original ideas.
C) Debate was vigorously quashed.
D) It had no army and lacked the support of state rulers.
E) There were not enough lawyers among its members to draft laws.