Problem statement: Answer the multiple choice question.
Query: Which drug has a 2.000\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a. O=C(c1cc([N+](=O)[O-])ccc1Cl)N1CCN(Cc2ccc3c(c2)OCO3)CC1
b. Cn1c(CCN2CCOCC2)nc2cc(NC(=O)COc3ccc(Cl)cc3)ccc21
c. O=C(CN1CCN(S(=O)(=O)c2ccccc2)CC1)Nc1ccc(Cl)c([N+](=O)[O-])c1
d. COc1ccc(NC(=O)N2CCCC2C(=O)NCc2ccc(C)cc2)cc1
Answer: b. Cn1c(CCN2CCOCC2)nc2cc(NC(=O)COc3ccc(Cl)cc3)ccc21
{#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#}
Cn1c(CCN2CCOCC2)nc2cc(NC(=O)COc3ccc(Cl)cc3)ccc21
Cn1c(CCN2CCOCC2)nc2cc(NC(=O)COc3ccc(Cl)cc3)ccc21
2-(4-chlorophenoxy)-N-[1-methyl-2-(2-morpholin-4-ylethyl)benzimidazol-5-yl]acetamide