Task: Answer the multiple choice question.
Query: Which drug exhibits a 3.698% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a.) O=S(=O)(c1ccc(Br)s1)N1CCN(c2ccnc3cc(Cl)ccc23)CC1
b.) Nc1nc(Cl)nc2c1ncn2C1CC(O)C(CO)O1
Answer: b. Nc1nc(Cl)nc2c1ncn2C1CC(O)C(CO)O1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
Nc1nc(Cl)nc2c1ncn2C1CC(O)C(CO)O1
Nc1nc(Cl)nc2c1ncn2C1CC(O)C(CO)O1
5-(6-amino-2-chloropurin-9-yl)-2-(hydroxymethyl)oxolan-3-ol