Task: Answer the MCQ question.
Query: Which compound has a 20.613\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
[a] O=C1C2=C(SCCS2)C(=O)N1c1ccccc1
[b] Cc1ccc(-c2nc(SCC(=O)NCCN3C(=O)CSC3=O)[nH]c2-c2ccc(C)cc2)cc1
[c] COC(=O)CN1C(=S)N(c2ccc(F)cc2)C(=O)C1CC(=O)Nc1ccc(F)cc1
Answer: a. O=C1C2=C(SCCS2)C(=O)N1c1ccccc1
{#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=C1C2=C(SCCS2)C(=O)N1c1ccccc1
O=C1C2=C(SCCS2)C(=O)N1c1ccccc1
6-phenyl-2,3-dihydro-[1,4]dithiino[2,3-c]pyrrole-5,7-dione