Problem statement: Answer the multiple-choice question.
Query: Which drug exhibits a 22.133\% 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 other words.
Options:
a O=S(=O)(NC1CC1)c1ccc(S(=O)(=O)N2CCc3ccccc32)cc1
b Cc1cc(C)n(-c2nc3ccccc3n3c(C)nnc23)n1
c CCOc1ccc(C(=O)CSCCC(=O)O)cc1
d O=C(N1CCOCC1)N1CCN(C(c2ccccc2)c2ccccc2)CC1
Answer: d. O=C(N1CCOCC1)N1CCN(C(c2ccccc2)c2ccccc2)CC1
{#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#}
(4-benzhydrylpiperazin-1-yl)-morpholin-4-ylmethanone