Task: Answer the MCQ question.
Question: Which compound has a 15.588\% 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 additional words.
Options:
a COc1ccc2c(=O)cc(-c3ccccc3F)oc2c1
b COc1ccc(CSc2nc3ccccc3c(=O)[nH]2)cc1F
c COc1ccc(C(=O)/C=C/Nc2cccc(O)c2)cc1
d Cc1[nH]c2ccccc2c1/C=N/Nc1nc(N2CCCCC2)nc(N2CCCCC2)n1
Answer: a. COc1ccc2c(=O)cc(-c3ccccc3F)oc2c1
{#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#}
COc1ccc2c(=O)cc(-c3ccccc3F)oc2c1
COc1ccc2c(=O)cc(-c3ccccc3F)oc2c1
2-(2-fluorophenyl)-7-methoxychromen-4-one