Task: Answer the MCQ question.
Question: Which compound exhibits a 1.755\% 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, or c without using any additional words.
Options:
a: COc1ccc(C2COc3cc(O)ccc3C2)c(OC)c1O
b: CCc1ccc(-n2nc3cc(C)c(N)cc3n2)cc1
c: N#C/C(=C(/O)CSc1ccccc1C(=O)O)c1nc2ccccc2s1
Answer: a. COc1ccc(C2COc3cc(O)ccc3C2)c(OC)c1O
{#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#}
COc1ccc(C2COc3cc(O)ccc3C2)c(OC)c1O
COc1ccc(C2COc3cc(O)ccc3C2)c(OC)c1O
3-(3-hydroxy-2,4-dimethoxyphenyl)-3,4-dihydro-2H-chromen-7-ol