Task: Answer the multiple choice question.
Question: Which drug has a 16.178\% human ether-à-go-go related gene (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(CN1CCN(c2ccccc2F)CC1)c1ccc(O)cc1O
b O=C1CN(S(=O)(=O)c2ccc(Cl)cc2)c2ccccc2N1
c CCC(CC)c1nnc(NC(=O)c2cc([N+](=O)[O-])ccc2N2CCCCC2)s1
d Cc1ccc(SCC(=O)NCCC2=CCCCC2)cc1
Answer: a. O=C(CN1CCN(c2ccccc2F)CC1)c1ccc(O)cc1O
{#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(CN1CCN(c2ccccc2F)CC1)c1ccc(O)cc1O
O=C(CN1CCN(c2ccccc2F)CC1)c1ccc(O)cc1O
1-(2,4-dihydroxyphenyl)-2-[4-(2-fluorophenyl)piperazin-1-yl]ethanone