Task: Answer the MCQ question.
Query: Which drug has a 0.383\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a) O=Cc1c(Cl)nc2ccccn2c1=O
b) COc1ccccc1/C=N/n1c(N)c(S(=O)(=O)c2cccs2)c2nc3ccccc3nc21
c) COc1ccc(OC)c2[nH]c(=O)c(CCNS(=O)(=O)c3ccccc3)cc12
d) Cc1cccc(CN2C(=O)CSc3ccc(C(=O)NC4CC4)cc32)c1
Answer: a. O=Cc1c(Cl)nc2ccccn2c1=O
{#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=Cc1c(Cl)nc2ccccn2c1=O
O=Cc1c(Cl)nc2ccccn2c1=O
2-chloro-4-oxopyrido[1,2-a]pyrimidine-3-carbaldehyde