sentence1: Simplifying F = -LRB- AB+C+D -RRB- -LRB- C + D -RRB- -LRB- C + D+E -RRB- produces a -RRB- A B C + D b -RRB- A B D E + C D c -RRB- A E + C D E d -RRB- A B E + C e -RRB- None of the above ?
sentence2: What is the square root of -4 ?