gmatprep- sc

[prachi_garg2004]

141. Astronomers have uncovered evidence that a star that was as bright as the full moon exploding into view 340.000 years ago, emitting dazzling radiation that could have disrupted Earth's protective ozone layer and sunburned our Stone Age ancestors.
A. that a star that was as bright as the full moon exploding into view 340,000 years ago, emitting
B. that a star as bright as the full moon exploded into view 340,000 years ago, emitting
C. of a star that was as bright as the full moon exploding into view 340,000 years ago and that it emitted
D. of a star as bright as the full moon, exploding into view 340,000 years ago and emitting
E. of a star as bright as the full moon that exploded into view 340,000 years ago and that emitted

what is wrong with 'D'
i always gets coonfused in parallelism.Ron please help

[RonPurewal]

please don't start new threads before you SEARCH the forum for existing threads.
by this point, there should be at least one thread for just about every GMAT PREP SC problem.

here are two threads for this one:

#1
astronomers-have-uncovered-evidence-t2947.html

#2
astronomers-have-uncovered-evidence-that-a-star-that-t4483.html

please read those threads, and then re-post your question (in one of THOSE threads) if it hasn't been answered already.

thanks