Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a -19.803\% 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] CN1CCN(c2nc(-c3ccccc3Cl)nc3ccccc23)CC1
[b] CS(=O)(=O)c1ccc2nc(NC(=O)c3ccccc3Br)sc2c1
[c] COc1ccc([C@@H]2CC=C(C(=O)O)[C@H](c3cccc(Cl)c3)N2S(=O)(=O)c2ccc(Cl)cc2)cc1
[d] CC(=O)C1=C(O)C(=O)N(Cc2ccccc2)C1c1ccccc1F
Answer: a. CN1CCN(c2nc(-c3ccccc3Cl)nc3ccccc23)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#}
CN1CCN(c2nc(-c3ccccc3Cl)nc3ccccc23)CC1
CN1CCN(c2nc(-c3ccccc3Cl)nc3ccccc23)CC1
2-(2-chlorophenyl)-4-(4-methylpiperazin-1-yl)quinazoline