Task: Answer the multiple-choice question.
Question: Which drug has a 19.440\% 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 other words.
Options:
(a) O=C(O)c1cc2ccc3ccccc3c2oc1=O
(b) Cc1nnsc1NC(=O)OCC(C)(C)C
(c) O=C1c2cccnc2C(=O)N1C1CCCCC1
Answer: a. O=C(O)c1cc2ccc3ccccc3c2oc1=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)c1cc2ccc3ccccc3c2oc1=O
O=C(O)c1cc2ccc3ccccc3c2oc1=O
[O][=C][Branch1][C][O][C][=C][C][=C][C][=C][C][=C][C][=C][C][Ring1][=Branch1][=C][Ring1][#Branch2][O][C][Ring1][=C][=O]
2-oxobenzo[h]chromene-3-carboxylic acid