Problem statement: Answer the MCQ question.
Query: Which drug exhibits a -4.974\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a O=C1NC(=O)N(c2ccc3c(c2)OCO3)C(=O)/C1=C\c1ccsc1
b O=c1c(-c2ccc3c(c2)OCCO3)coc2c(CN3CCOCC3)c(O)ccc12
Answer: b. O=c1c(-c2ccc3c(c2)OCCO3)coc2c(CN3CCOCC3)c(O)ccc12
{#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#}
O=c1c(-c2ccc3c(c2)OCCO3)coc2c(CN3CCOCC3)c(O)ccc12
O=c1c(-c2ccc3c(c2)OCCO3)coc2c(CN3CCOCC3)c(O)ccc12
3-(2,3-dihydro-1,4-benzodioxin-6-yl)-7-hydroxy-8-(morpholin-4-ylmethyl)chromen-4-one