Task: Answer the MCQ question.
Query: Which drug exhibits a 4.721\% 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 or b without using any additional words.
Options:
[a] O=c1[nH]c(-c2cccs2)nc2ccccc12
[b] Cc1cc(C)nc(SCC(=O)N/N=C/c2cccn2-c2ccc(O)cc2)n1
Answer: a. O=c1[nH]c(-c2cccs2)nc2ccccc12
{#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#}
O=c1[nH]c(-c2cccs2)nc2ccccc12
O=c1[nH]c(-c2cccs2)nc2ccccc12
2-thiophen-2-yl-3H-quinazolin-4-one