Task: Question Answering
Input (English): Question: What will be the charge of the glutamic amino acid at pH 7? 
 Options:  <1> It will not have a net charge. <2> It will have negative net charge. <3> It will have positive net charge. <4> Its side chain will be protonated. <5> Your α-amino group will be deprotonated.
Output (English): 2