Task: Answer the MCQ question.
Query: Which compound exhibits a 9.776\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a O=C(NCc1nc2ccccc2[nH]1)C1=C[C@H](C2CC2)C[C@H](OCc2ccc(CO)cc2)O1
b O=S(=O)(c1cccc2cccnc12)N1CCc2ccccc21
c CCN(C(=O)Oc1ccccc1)c1ccc(C(O)(C(=O)OC)C(F)(F)F)cc1
d CCN(Cc1ccccc1)S(=O)(=O)c1ccc(F)cc1
e O=C(CN1CCN(c2ccc([N+](=O)[O-])cc2)CC1)Nc1nccs1
Answer: b. O=S(=O)(c1cccc2cccnc12)N1CCc2ccccc21
{#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=S(=O)(c1cccc2cccnc12)N1CCc2ccccc21
O=S(=O)(c1cccc2cccnc12)N1CCc2ccccc21
8-(2,3-dihydroindol-1-ylsulfonyl)quinoline