Task: Answer the MCQ question.
Query: Which compound exhibits a -14.176% human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a) O=C1OCCC1Sc1ncnc2sccc12
b) CN1/C(=C\C=C2/C(=O)Oc3ccccc3C2=O)C(C)(C)c2ccccc21
c) CCOc1ccc2nc(N(CCN(C)C)C(=O)c3ccc4ccccc4c3)sc2c1.Cl
Answer: a. O=C1OCCC1Sc1ncnc2sccc12
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C1OCCC1Sc1ncnc2sccc12
O=C1OCCC1Sc1ncnc2sccc12
3-thieno[2,3-d]pyrimidin-4-ylsulfanyloxolan-2-one