Task: Answer the multiple-choice question.
Query: Which drug exhibits a 13.039\% 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.) ClCCOCCCl
b.) CNC(=O)c1ccsc1NC(=O)CN1C(=O)CCC1=O
c.) Cc1cc(NCC(C)C)n2ncnc2n1
Answer: a. ClCCOCCCl
{#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#}
ClCCOCCCl
ClCCOCCCl
1-chloro-2-(2-chloroethoxy)ethane