Task: Answer the multiple choice question.
Question: Which compound exhibits a 3.578\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] c1coc(CNc2nc3sc4c(c3c3ncnn23)CCCC4)c1
[b] c1cc2ccc3ccc(CN4CCOCC4)c4ccc(c1)c2c34
Answer: b. c1cc2ccc3ccc(CN4CCOCC4)c4ccc(c1)c2c34
{#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#}
c1cc2ccc3ccc(CN4CCOCC4)c4ccc(c1)c2c34
c1cc2ccc3ccc(CN4CCOCC4)c4ccc(c1)c2c34
4-(pyren-1-ylmethyl)morpholine