The correct answer is freeze.
C. come together
D. convey away
The correct answer is (B) To freeze; to solidify by cooling; to change from fluid to solid, as by cooling or freezing; to coagulate; to make or become fixed (sentiments, principles, etc).
Congeal comes from Middle English congelen, Latin congelare (con [together] + gelare [to freeze]).
Examples of use:
- The fat congealed as the frying pan cooled.
- After weeks of discussion, her plans had congealed.