If $\varOmega$ _matter $\varOmega$ _$\wedge$ = 1 Today and Dark Energy Was a Cosmological

Multiple Choice

If $\varOmega$ _matter + $\varOmega$ _$\wedge$ = 1 today and dark energy was a cosmological constant,the universe will:

A) expand forever
B) slow its expansion but never reverse it
C) stop expanding and eventually collapse
D) oscillate between expansion and collapse