Task: Answer the multiple choice question.
Query: Which drug exhibits a 16.684\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
(a) CC1(C)CC(NC(=O)C(c2ccccc2)c2ccccc2)CC(C)(C)N1
(b) Cc1cccc(C(=O)NCCCn2ccnc2)c1C
(c) O=C(O)C[C@@H](O)C(=O)O
Answer: c. O=C(O)C[C@@H](O)C(=O)O
{#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=C(O)C[C@@H](O)C(=O)O
O=C(O)C[C@@H](O)C(=O)O
(2R)-2-hydroxybutanedioic acid