Problem statement: Answer the multiple choice question.
Question: Which drug has a -6.040\% 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 additional words.
Options:
a. O=c1cc(-c2ccccc2Cl)oc2cccc(O)c12
b. CCc1nnc(NS(=O)(=O)c2ccc(N3C(=O)C4CC=C(Cl)CC4C3=O)cc2)s1
c. C/C(=N/NC(=O)Cc1cccc2ccccc12)c1cccs1
d. O=C(NCc1cccs1)c1nc(-c2cccs2)no1
Answer: a. O=c1cc(-c2ccccc2Cl)oc2cccc(O)c12
{#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=c1cc(-c2ccccc2Cl)oc2cccc(O)c12
O=c1cc(-c2ccccc2Cl)oc2cccc(O)c12
2-(2-chlorophenyl)-5-hydroxychromen-4-one