Task: Answer the multiple choice question.
Query: Which drug exhibits a 19.752\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] O=C1CC(c2ccccc2F)c2c(c3ccccc3[nH]c2=O)O1
[b] COc1cc(OC)c(OC)cc1CN1CCN(C(=O)c2cccc3ccccc23)CC1.O=C(O)C(=O)O
[c] Cc1ccc(C)c(NC(=S)NCc2ccc3[nH]c4c(c3c2)CCCC4)c1
[d] Cn1c(=O)c2c(nc(SCC(=O)N3CCCCCC3)n2C)n(C)c1=O
Answer: a. O=C1CC(c2ccccc2F)c2c(c3ccccc3[nH]c2=O)O1
{#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=C1CC(c2ccccc2F)c2c(c3ccccc3[nH]c2=O)O1
O=C1CC(c2ccccc2F)c2c(c3ccccc3[nH]c2=O)O1
4-(2-fluorophenyl)-4,6-dihydro-3H-pyrano[3,2-c]quinoline-2,5-dione