Task: Answer the multiple choice question.
Query: Which drug exhibits a 18.951\% human ether-à-go-go related gene (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: CCCCn1c(N)c(N(CCOC)C(=O)c2ccc(C)c(S(=O)(=O)N3CCCCC3)c2)c(=O)[nH]c1=O
b: CCOC(=O)c1c(NC(=O)CSc2nnc(CNc3ccc(Cl)cc3)o2)sc(C)c1C
c: CC1CN(C(=O)C(C)N2CCN(c3ccccc3Cl)CC2)CC(C)O1
d: CCN(CC)C(=O)c1c(-c2ccccc2)oc2ccc(OC)cc12
e: Cc1nc2nc3c(c(=O)n2[nH]1)CCCC3
Answer: b. CCOC(=O)c1c(NC(=O)CSc2nnc(CNc3ccc(Cl)cc3)o2)sc(C)c1C
{#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#}
CCOC(=O)c1c(NC(=O)CSc2nnc(CNc3ccc(Cl)cc3)o2)sc(C)c1C
CCOC(=O)c1c(NC(=O)CSc2nnc(CNc3ccc(Cl)cc3)o2)sc(C)c1C
ethyl 2-[[2-[[5-[(4-chloroanilino)methyl]-1,3,4-oxadiazol-2-yl]sulfanyl]acetyl]amino]-4,5-dimethylthiophene-3-carboxylate