Task: Answer the multiple choice question.
Question: Which compound exhibits a 4.762\% 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(O)CC1S/C(=N/N=C/c2ccc(-c3ccccc3[N+](=O)[O-])o2)NC1=O
b: Cn1cc(CCNC(=O)C2CCC(=O)N(CCc3ccc(Cl)cc3)C2)cn1
c: C=CCNC(=O)Nc1ccc(F)cc1F
d: COc1ccc(CC(=O)Nc2cccc(-c3ccc4nnc(C)n4n3)c2)cc1
Answer: c. C=CCNC(=O)Nc1ccc(F)cc1F
{#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#}
C=CCNC(=O)Nc1ccc(F)cc1F
C=CCNC(=O)Nc1ccc(F)cc1F
1-(2,4-difluorophenyl)-3-prop-2-enylurea