Task: Answer the MCQ question.
Question: Which compound has a 21.689\% 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 other words.
Options:
a. COc1ccc(N(C(=O)CCl)C(C(=O)NCCc2ccccc2)c2cccs2)cc1
b. CC(C)CCNC(=O)CN(C(=O)CCC(=O)Nc1ccccn1)c1ccc(F)c(Cl)c1
c. O=C(c1ccc(Cl)cc1)c1c[nH]c(C(=O)C(Cl)(Cl)Cl)c1
d. O=C(Cc1ccccc1)N/N=C/C=C/c1ccccc1[N+](=O)[O-]
e. CSCCC(NS(=O)(=O)c1ccc(C)cc1)C(=O)NC1CCCCCC1
Answer: c. O=C(c1ccc(Cl)cc1)c1c[nH]c(C(=O)C(Cl)(Cl)Cl)c1
{#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(c1ccc(Cl)cc1)c1c[nH]c(C(=O)C(Cl)(Cl)Cl)c1
O=C(c1ccc(Cl)cc1)c1c[nH]c(C(=O)C(Cl)(Cl)Cl)c1
2,2,2-trichloro-1-[4-(4-chlorobenzoyl)-1H-pyrrol-2-yl]ethanone