Task: Answer the multiple choice question.
Question: Which drug exhibits a 2.000\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a. Cn1ccnc1P(=S)(c1nccn1C)c1nccn1C
b. Clc1ccc(-n2nnc(-c3cccnc3Cl)n2)cn1
c. CN(C[C@@H](CC1CCCCC1)N(C[C@H](Cc1ccccc1)N(CCc1ccccc1)N=O)N=O)N=O.[Na+]
Answer: b. Clc1ccc(-n2nnc(-c3cccnc3Cl)n2)cn1
{#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#}
Clc1ccc(-n2nnc(-c3cccnc3Cl)n2)cn1
Clc1ccc(-n2nnc(-c3cccnc3Cl)n2)cn1
2-chloro-3-[3-(6-chloropyridin-3-yl)tetrazol-5-yl]pyridine