Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a -20.460% human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
(a) CN1CCN(C(=O)CCn2nc(-c3ccccc3)c3ccccc3c2=O)CC1
(b) O=C(CCc1ccc(S(=O)(=O)NCCc2ccccc2)cc1)N1CCN(Cc2ccc3c(c2)OCO3)CC1
(c) Cc1ccc(-n2cc(C(=O)c3ccc(N4CCN(C)CC4)cc3)nn2)cc1Cl
(d) Cc1ccc(S(=O)(=O)CCC(=O)Nc2nnc(-c3cccs3)o2)cc1
Answer: a. CN1CCN(C(=O)CCn2nc(-c3ccccc3)c3ccccc3c2=O)CC1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CN1CCN(C(=O)CCn2nc(-c3ccccc3)c3ccccc3c2=O)CC1
CN1CCN(C(=O)CCn2nc(-c3ccccc3)c3ccccc3c2=O)CC1
2-[3-(4-methylpiperazin-1-yl)-3-oxopropyl]-4-phenylphthalazin-1-one