Task: Answer the multiple choice question.
Question: Which compound exhibits a 12.684\% 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 other words.
Options:
[a] NC(=O)C1CCN(C(=O)c2ccc3c(=O)n(Cc4ccco4)c(SCC(=O)c4ccc(F)cc4)nc3c2)CC1
[b] COc1ccc2cc(C#N)c(SCC(=O)N3CCCC3)nc2c1
[c] CCO[C@H]1OC(C(=O)O)=C[C@@H](C)[C@@H]1CCCO
[d] C/C(CC(=O)Nc1c(Cl)cccc1C(F)(F)F)=N\NC(=O)c1cnccn1
Answer: c. CCO[C@H]1OC(C(=O)O)=C[C@@H](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)O)=C[C@@H](C)[C@@H]1CCCO
CCO[C@H]1OC(C(=O)O)=C[C@@H](C)[C@@H]1CCCO
(2S,3S,4R)-2-ethoxy-3-(3-hydroxypropyl)-4-methyl-3,4-dihydro-2H-pyran-6-carboxylic acid