Task: Answer the MCQ question.
Question: Which compound exhibits a 12.066\% human ether-à-go-go related gene (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 O=C1C=C(Nc2ccc(Cl)cc2)C(=O)N1c1ccc(Cl)cc1
b CCN(CC)CCCNC(=O)c1cc(-c2ccc(O)cc2)on1
c Cc1ccc(N(Cc2ccc([N+](=O)[O-])cc2)C(=O)c2ccco2)cc1C
d CC(C)CC(=O)c1c[nH]c(C(=O)NCC2CCCO2)c1
e CCCN1CCN(C(=O)C2CCN(c3nnc(C)c4c(C)n(-c5ccc(C)cc5)nc34)CC2)CC1
Answer: a. O=C1C=C(Nc2ccc(Cl)cc2)C(=O)N1c1ccc(Cl)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=C1C=C(Nc2ccc(Cl)cc2)C(=O)N1c1ccc(Cl)cc1
O=C1C=C(Nc2ccc(Cl)cc2)C(=O)N1c1ccc(Cl)cc1
3-(4-chloroanilino)-1-(4-chlorophenyl)pyrrole-2,5-dione