Task: Answer the MCQ question.
Query: Which drug exhibits a 17.894\% 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 CNC(=S)N/N=C1\CC(c2ccccc2)Oc2ccccc21
b Cc1ccc(S(=O)(=O)NNC(=O)c2cc([N+](=O)[O-])c(C)c([N+](=O)[O-])c2)cc1
c NC(=O)C1CCN(c2nc(-c3ccccc3)nc3ccccc23)CC1
d COc1ccc(-c2ccc(SCC(=O)c3ccc(F)cc3)nn2)cc1OC
Answer: a. CNC(=S)N/N=C1\CC(c2ccccc2)Oc2ccccc21
{#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#}
CNC(=S)N/N=C1\CC(c2ccccc2)Oc2ccccc21
CNC(=S)N/N=C1\CC(c2ccccc2)Oc2ccccc21
1-methyl-3-[(E)-(2-phenyl-2,3-dihydrochromen-4-ylidene)amino]thiourea