Problem statement: Answer the multiple-choice question.
Question: Which drug exhibits a 5.216\% 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(NCc1cccs1)c1cc2c(s1)-c1ccccc1OC2
b COc1ccc(NC(=O)N2CCCC(C(=O)NCc3ccccc3F)C2)cc1
c Cn1c(=O)[nH]c(Nc2ccc(F)cc2)c([N+](=O)[O-])c1=O
d COCCCC1CCN(Cc2nc(Cc3ccccc3Cl)no2)CC1
Answer: a. O=C(NCc1cccs1)c1cc2c(s1)-c1ccccc1OC2
{#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(NCc1cccs1)c1cc2c(s1)-c1ccccc1OC2
O=C(NCc1cccs1)c1cc2c(s1)-c1ccccc1OC2
N-(thiophen-2-ylmethyl)-4H-thieno[3,2-c]chromene-2-carboxamide