Task: Answer the MCQ question.
Query: Which compound exhibits a 0.844\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a: COc1ccccc1/C=N/NC(=O)CCn1cnc2ccccc21
b: CCc1nnc(NC(=O)CSc2nnc3c(n2)[nH]c2ccccc23)s1
c: COCCN(CC(=O)Nc1cccc(C)c1C)C(=O)c1ccc2ccccc2n1
d: COC(=O)C(CCSC)NC(=O)c1cc2c(n(-c3ccccc3)c1=O)CC(C)(C)CC2=O
e: COc1cccc(NC(=O)CCC2CCN(Cc3nccs3)CC2)c1
Answer: b. CCc1nnc(NC(=O)CSc2nnc3c(n2)[nH]c2ccccc23)s1
{#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#}
CCc1nnc(NC(=O)CSc2nnc3c(n2)[nH]c2ccccc23)s1
CCc1nnc(NC(=O)CSc2nnc3c(n2)[nH]c2ccccc23)s1
N-(5-ethyl-1,3,4-thiadiazol-2-yl)-2-(5H-[1,2,4]triazino[5,6-b]indol-3-ylsulfanyl)acetamide