Task: Answer the multiple-choice question.
Question: Which drug exhibits a -2.771\% 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 Cc1cccc(OCCCC(=O)NNC(=O)c2ccc(F)cc2)c1
b CCO[C@@H]1OC(C(=O)NCc2nc3ccccc3[nH]2)=C[C@H](C(C)(C)C)[C@H]1CCCO
c COc1ccc(-n2nc(C(=O)NCC(=O)N3CCN(c4ccccn4)CC3)c3ccccc3c2=O)cc1Cl
Answer: b. CCO[C@@H]1OC(C(=O)NCc2nc3ccccc3[nH]2)=C[C@H](C(C)(C)C)[C@H]1CCCO
{#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#}
CCO[C@@H]1OC(C(=O)NCc2nc3ccccc3[nH]2)=C[C@H](C(C)(C)C)[C@H]1CCCO
CCO[C@@H]1OC(C(=O)NCc2nc3ccccc3[nH]2)=C[C@H](C(C)(C)C)[C@H]1CCCO
(2R,3R,4S)-N-(1H-benzimidazol-2-ylmethyl)-4-tert-butyl-2-ethoxy-3-(3-hydroxypropyl)-3,4-dihydro-2H-pyran-6-carboxamide