Task: Answer the MCQ question.
Query: Which drug has a 4.891\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) CCCS(=O)(=O)N1CCCC(C(=O)NCCCN2CCN(c3ccc(F)cc3)CC2)C1
(b) O=C(Nc1ccccc1)c1ccccc1Oc1ccc(C(F)(F)F)cc1[N+](=O)[O-]
Answer: b. O=C(Nc1ccccc1)c1ccccc1Oc1ccc(C(F)(F)F)cc1[N+](=O)[O-]
{#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)c1ccccc1Oc1ccc(C(F)(F)F)cc1[N+](=O)[O-]
O=C(Nc1ccccc1)c1ccccc1Oc1ccc(C(F)(F)F)cc1[N+](=O)[O-]
2-[2-nitro-4-(trifluoromethyl)phenoxy]-N-phenylbenzamide