Task: Answer the multiple choice question.
Question: Which compound exhibits a 2.252\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
[a] O=C(Nc1ccccc1)Nc1ccc(C(F)(F)F)cn1
[b] O=C(CCNC(=O)c1ccc([N+](=O)[O-])cc1)NC1CCCCCC1
[c] COc1ccc(-c2nc(C)sc2CC(=O)O)cc1
[d] Cc1ccc(-c2nc(N=Nc3ccc(O)cc3)n[nH]2)cc1
[e] O=C(/C=C/c1ccc([N+](=O)[O-])cc1)NCc1cccs1
Answer: a. O=C(Nc1ccccc1)Nc1ccc(C(F)(F)F)cn1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_central_at_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C(Nc1ccccc1)Nc1ccc(C(F)(F)F)cn1
O=C(Nc1ccccc1)Nc1ccc(C(F)(F)F)cn1
1-phenyl-3-[5-(trifluoromethyl)pyridin-2-yl]urea