Task: Answer the MCQ question.
Question: Which drug has a 2.054\% 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] CCO[C@@H]1OC(C(=O)N2CCN(Cc3ccc4c(c3)OCO4)CC2)=C[C@H](C2CCCCC2)[C@H]1CCCO
[b] CS(=O)(=O)c1ccc(-c2cccc(NC(=O)COc3ccc(Cl)cc3)c2)nn1
[c] Cc1c(/C=N/Nc2ccc(F)cc2)c(O)n(C)c(=O)c1C#N
[d] COC(=O)Cn1c(O)c(N=NC(=O)OC)c2ccccc21
Answer: a. CCO[C@@H]1OC(C(=O)N2CCN(Cc3ccc4c(c3)OCO4)CC2)=C[C@H](C2CCCCC2)[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)N2CCN(Cc3ccc4c(c3)OCO4)CC2)=C[C@H](C2CCCCC2)[C@H]1CCCO
CCO[C@@H]1OC(C(=O)N2CCN(Cc3ccc4c(c3)OCO4)CC2)=C[C@H](C2CCCCC2)[C@H]1CCCO
[4-(1,3-benzodioxol-5-ylmethyl)piperazin-1-yl]-[(2R,3R,4S)-4-cyclohexyl-2-ethoxy-3-(3-hydroxypropyl)-3,4-dihydro-2H-pyran-6-yl]methanone