Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a -2.925\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a. CCOCCCn1c(=S)[nH]c2cc(C(=O)N3CCC(C(N)=O)CC3)ccc2c1=O
b. CC(=O)Nc1ccc(S(=O)(=O)Nc2nccs2)cc1
c. CC(C)C(=O)Nc1ccc2c(c1)nc(CCN1CCN(c3ccccc3)CC1)n2C
d. Cc1nc2ccccn2c1C(=O)N=Nc1c(O)n(CCC(C)C)c2ccccc12
e. CCc1nnc(NC(=O)c2cccc(C(=O)Nc3nnc(CC)s3)n2)s1
Answer: c. CC(C)C(=O)Nc1ccc2c(c1)nc(CCN1CCN(c3ccccc3)CC1)n2C
{#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#}
CC(C)C(=O)Nc1ccc2c(c1)nc(CCN1CCN(c3ccccc3)CC1)n2C
CC(C)C(=O)Nc1ccc2c(c1)nc(CCN1CCN(c3ccccc3)CC1)n2C
2-methyl-N-[1-methyl-2-[2-(4-phenylpiperazin-1-yl)ethyl]benzimidazol-5-yl]propanamide