Task: Answer the MCQ question.
Question: Which drug has a 17.004\% 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: COCCn1c(SCC(=O)Nc2cccc(C)c2)nnc1C(C)C
b: CCNC(=O)Nn1c(-c2ccccc2)nc2ccccc2c1=O
c: COc1ccc2[nH]c(=O)c(CN(CCO)C(=O)c3ccccc3F)cc2c1
d: O=C1CC(c2cccc(Oc3ccccc3)c2)NC(=O)N1
Answer: b. CCNC(=O)Nn1c(-c2ccccc2)nc2ccccc2c1=O
{#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#}
1-ethyl-3-(4-oxo-2-phenylquinazolin-3-yl)urea