Task: Answer the MCQ question.
Question: Which drug has a -1.574\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] COc1ccc(NC(=O)Nc2cccc3cccnc23)cc1
[b] O=C(NNC(=O)c1cccnc1)Nc1cccc2ccccc12
[c] CCc1cc(=O)oc2c(CN3CCCC3)c(O)c(Cl)cc12
[d] Cc1cc(C(=O)Nc2nc3c(C)cccc3s2)c(C)o1
Answer: c. CCc1cc(=O)oc2c(CN3CCCC3)c(O)c(Cl)cc12
{#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#}
CCc1cc(=O)oc2c(CN3CCCC3)c(O)c(Cl)cc12
CCc1cc(=O)oc2c(CN3CCCC3)c(O)c(Cl)cc12
6-chloro-4-ethyl-7-hydroxy-8-(pyrrolidin-1-ylmethyl)chromen-2-one