Problem statement: Answer the MCQ question.
Query: Which drug exhibits a 1.967\% 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 COc1ccc(C2C(C#N)=C(N)Oc3cc(O)ccc32)cc1OC
b O=C(O)CSc1cc(C(=O)c2cc(F)ccc2O)cn2c(=O)c3c(-c4ccccc4)csc3nc12
Answer: b. O=C(O)CSc1cc(C(=O)c2cc(F)ccc2O)cn2c(=O)c3c(-c4ccccc4)csc3nc12
{#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=C(O)CSc1cc(C(=O)c2cc(F)ccc2O)cn2c(=O)c3c(-c4ccccc4)csc3nc12
O=C(O)CSc1cc(C(=O)c2cc(F)ccc2O)cn2c(=O)c3c(-c4ccccc4)csc3nc12
2-[[12-(5-fluoro-2-hydroxybenzoyl)-2-oxo-4-phenyl-6-thia-1,8-diazatricyclo[7.4.0.03,7]trideca-3(7),4,8,10,12-pentaen-10-yl]sulfanyl]acetic acid