Task: Answer the multiple-choice question.
Query: Which compound exhibits a -1.805\% 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 other words.
Options:
(a) COCCCNC(=O)C1CCC(=O)N(c2ccc3c(c2)OCO3)C1c1ccc(OC)cc1
(b) CC(C)CN(C(=O)CCCc1nc2ccccc2c(=O)[nH]1)c1c(N)n(Cc2ccccc2)c(=O)[nH]c1=O
(c) CN(c1nc2ccccc2[nH]c1=O)C1CCCCC1
(d) O=C(NCc1cccnc1)Nc1ccccc1
Answer: d. O=C(NCc1cccnc1)Nc1ccccc1
{#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(NCc1cccnc1)Nc1ccccc1
O=C(NCc1cccnc1)Nc1ccccc1
1-phenyl-3-(pyridin-3-ylmethyl)urea