Task: Answer the MCQ question.
Question: Which drug exhibits a 0.438\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: CCc1ccc2nc3sc(C(=O)Nc4nnc(CC)s4)c(N)c3cc2c1
b: CCO[C@H]1OC(C(=O)NCc2ccccc2)=C[C@@H](c2coc3ccccc3c2=O)[C@@H]1CCCO
c: COc1ccccc1Cc1nc(-c2ccc(C)cc2)no1
Answer: b. CCO[C@H]1OC(C(=O)NCc2ccccc2)=C[C@@H](c2coc3ccccc3c2=O)[C@@H]1CCCO
{#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#}
CCO[C@H]1OC(C(=O)NCc2ccccc2)=C[C@@H](c2coc3ccccc3c2=O)[C@@H]1CCCO
CCO[C@H]1OC(C(=O)NCc2ccccc2)=C[C@@H](c2coc3ccccc3c2=O)[C@@H]1CCCO
(2S,3S,4R)-N-benzyl-2-ethoxy-3-(3-hydroxypropyl)-4-(4-oxochromen-3-yl)-3,4-dihydro-2H-pyran-6-carboxamide