Task: Answer the MCQ question.
Question: Which drug exhibits a 4.703\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: O=C(Cc1ccc(Cl)cc1)N/N=C1\CCCc2ccccc21
b: O=C(Oc1ccccc1-c1csnn1)c1cccs1
c: COc1cc(C(=O)O)c2c(c1C)OC(=O)c1c(C)cc(O)c(C=O)c1O2
d: N#Cc1c(/N=C\c2ccc(O)c([N+](=O)[O-])c2)sc2c1CCCC2
Answer: b. O=C(Oc1ccccc1-c1csnn1)c1cccs1
{#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#}
[2-(thiadiazol-4-yl)phenyl] thiophene-2-carboxylate