Task: Answer the multiple-choice question.
Query: Which compound exhibits a 9.913\% 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] COCC(C)NC(=O)c1ccccc1OC(C)=O
[b] O=C(CN1CCCCC1)N1c2ccccc2Oc2ccccc21
[c] CCOc1ccc(NC(=O)N(C2CCCCCC2)C2CCN(C(C)=O)CC2)cc1
[d] COC(=O)c1nc2cc(C)ccn2c1F
Answer: b. O=C(CN1CCCCC1)N1c2ccccc2Oc2ccccc21
{#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#}
1-phenoxazin-10-yl-2-piperidin-1-ylethanone