Problem statement: Answer the MCQ question.
Question: Which drug exhibits a -73.985\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a O=C(c1cc([N+](=O)[O-])ccc1N1CCOCC1)N1CCN(c2ccc([N+](=O)[O-])cc2)CC1
b O=C(C(=O)N1CCN(c2ccccc2)CC1)c1cn(CC(=O)N2CCCCCC2)c2ccccc12
Answer: a. O=C(c1cc([N+](=O)[O-])ccc1N1CCOCC1)N1CCN(c2ccc([N+](=O)[O-])cc2)CC1
{#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(c1cc([N+](=O)[O-])ccc1N1CCOCC1)N1CCN(c2ccc([N+](=O)[O-])cc2)CC1
O=C(c1cc([N+](=O)[O-])ccc1N1CCOCC1)N1CCN(c2ccc([N+](=O)[O-])cc2)CC1
(2-morpholin-4-yl-5-nitrophenyl)-[4-(4-nitrophenyl)piperazin-1-yl]methanone