Task: Answer the multiple choice question.
Question: Which drug has a 14.964\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
[a] CCO[C@@H]1OC(C(=O)O)=C[C@H](C)[C@H]1CCCO
[b] NS(=O)(=O)c1ccc(CCNC(=O)c2ccc(CS(=O)(=O)c3ccc(Br)cc3)o2)cc1
[c] O=c1cc(CO)oc(CN2CCN(CCO)CC2)c1O
[d] COc1ccc(C)cc1NC(=O)C1CCCN(S(=O)(=O)c2cccnc2)C1
[e] COc1ccc(S(=O)(=O)N2CCOCC2)cc1NC(=O)CSc1nnc(C2CC2)n1C1CC1
Answer: a. 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
(2R,3R,4S)-2-ethoxy-3-(3-hydroxypropyl)-4-methyl-3,4-dihydro-2H-pyran-6-carboxylic acid