Task: Answer the multiple-choice question.
Query: Which drug exhibits a 2.162\% 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 other words.
Options:
a. N#Cc1ccc(OCc2nnc(SCC(=O)c3ccccc3)n2-c2ccccc2)cc1
b. Cc1ccccc1COc1ccc(-c2nn[nH]n2)cc1
c. Cc1cccc(CNC(=O)CC2C(=O)NCCN2C2CCCC2)c1
d. CCn1c(-c2cccnc2Cl)nc2ccccc21
e. C=Cn1c(C(=O)O)ccc1-c1ccc(OC)cc1
Answer: d. CCn1c(-c2cccnc2Cl)nc2ccccc21
{#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#}
CCn1c(-c2cccnc2Cl)nc2ccccc21
CCn1c(-c2cccnc2Cl)nc2ccccc21
2-(2-chloropyridin-3-yl)-1-ethylbenzimidazole