Task: Answer the MCQ question.
Question: Which drug exhibits a 4.550\% 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 CCCCc1ccc(NC(=S)N2CCN(c3ncccn3)CC2)cc1
b CCCC(=O)NCCCCNC(=O)CCC
c S=C1NC2=C(C(c3ccc(Br)cc3)N1)N1CCC2CC1
d COCCN1CC(CNC(=O)c2cc(COc3ccccc3SC)on2)CC1=O
e CCCCCC1CC(/C(C)=N/NC(N)=O)OC1=O
Answer: b. CCCC(=O)NCCCCNC(=O)CCC
{#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#}
CCCC(=O)NCCCCNC(=O)CCC
CCCC(=O)NCCCCNC(=O)CCC
N-[4-(butanoylamino)butyl]butanamide