Task: Answer the MCQ question.
Question: Which drug exhibits a 4.456% human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: CC1CCCCN1CCNC(=O)c1cc2c(-c3ccccc3F)nn(C)c2s1
b: CCc1c(C)c2ccc(O)c(CN3CCCC3)c2oc1=O
c: COc1ccc(S(=O)(=O)c2cnc3ccc(OC)cc3c2N2CCC3(CC2)OCCO3)cc1
d: CC(=O)Nc1sc(NC(=O)c2ccc([N+](=O)[O-])cc2)nc1-c1cccs1
Answer: b. CCc1c(C)c2ccc(O)c(CN3CCCC3)c2oc1=O
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCc1c(C)c2ccc(O)c(CN3CCCC3)c2oc1=O
CCc1c(C)c2ccc(O)c(CN3CCCC3)c2oc1=O
3-ethyl-7-hydroxy-4-methyl-8-(pyrrolidin-1-ylmethyl)chromen-2-one