Task: Answer the multiple-choice question.
Query: Which drug has a 3.752\% 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.) CCO[C@H]1OC(C(N)=O)=C[C@@H](c2ccccc2)[C@@H]1CCCO
b.) O=C(NCCN1CCN(Cc2ccccc2)CC1)c1ccc(CS(=O)(=O)c2ccc(Br)cc2)o1
c.) COc1ccc(C)cc1S(=O)(=O)Nc1cccc(-c2ccc(N3CCCCCC3)nn2)c1
d.) Cn1cc(Br)c(C(=O)NNC(=O)c2ccc(Cl)cc2)n1
Answer: a. CCO[C@H]1OC(C(N)=O)=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(N)=O)=C[C@@H](c2ccccc2)[C@@H]1CCCO
CCO[C@H]1OC(C(N)=O)=C[C@@H](c2ccccc2)[C@@H]1CCCO
(2S,3S,4R)-2-ethoxy-3-(3-hydroxypropyl)-4-phenyl-3,4-dihydro-2H-pyran-6-carboxamide