Problem statement: Answer the MCQ question.
Query: Which compound exhibits a 4.520\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a COc1cc(CNCCN2CCOCC2)ccc1OCc1ccccc1Cl.Cl
b CCc1ccccc1NC(=O)N[C@@H](C)C(=O)OC
c Cn1c(-c2sc3cc(C(F)(F)F)cnc3c2-c2ccccc2)n[nH]c1=S
d CC(N=C(NC#N)Nc1ccncc1)C(C)(C)C
Answer: b. CCc1ccccc1NC(=O)N[C@@H](C)C(=O)OC
{#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#}
CCc1ccccc1NC(=O)N[C@@H](C)C(=O)OC
CCc1ccccc1NC(=O)N[C@@H](C)C(=O)OC
methyl (2S)-2-[(2-ethylphenyl)carbamoylamino]propanoate