Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a 4.357\% 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, or d without using any other words.
Options:
a.) COc1ccccc1CNC(=O)c1c(-c2ccccc2Cl)noc1C
b.) COC(C)c1oc2c(C)c3oc(=O)cc(C)c3cc2c1C
c.) O=C(Cn1c(=O)n(-c2ccccc2)c(=O)c2oc3ccccc3c21)Nc1ccccc1
d.) NC(=O)c1ccc(N=Nc2c(O)[nH]c(=O)[nH]c2=O)cc1
Answer: b. COC(C)c1oc2c(C)c3oc(=O)cc(C)c3cc2c1C
{#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#}
COC(C)c1oc2c(C)c3oc(=O)cc(C)c3cc2c1C
COC(C)c1oc2c(C)c3oc(=O)cc(C)c3cc2c1C
2-(1-methoxyethyl)-3,5,9-trimethylfuro[3,2-g]chromen-7-one