Task: Answer the MCQ question.
Query: Which drug exhibits a -0.633\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] O=C(N/N=C/c1ccccc1O)/C(=C/c1ccccc1)CCO
[b] CC(C)C[C@]1(c2ccccc2)ON(c2ccccc2C(F)(F)F)C1=O
[c] COc1cccc(N2CC(C(=O)Nc3nnc(SCCN4CCOCC4)s3)CC2=O)c1
[d] Cc1ccc(NC(=O)CN(c2ccc(Cl)cc2)S(=O)(=O)c2cc([N+](=O)[O-])ccc2Cl)cc1
Answer: a. O=C(N/N=C/c1ccccc1O)/C(=C/c1ccccc1)CCO
{#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(N/N=C/c1ccccc1O)/C(=C/c1ccccc1)CCO
O=C(N/N=C/c1ccccc1O)/C(=C/c1ccccc1)CCO
(2E)-2-benzylidene-4-hydroxy-N-[(E)-(2-hydroxyphenyl)methylideneamino]butanamide