Task: Answer the multiple-choice question.
Question: Which drug has a 9.264\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a Cc1nc(C)n(CC(O)COc2ccc3ccccc3c2)n1
b Clc1ncnc2c1oc1ccccc12
c COc1cc(C2CC(=O)N3CN(c4ccccc4C)CSC3=C2C#N)cc(OC)c1OC
d Cc1ccc(C(C(=O)NC2CCCC2)N(C(=O)CNC(=O)c2cccs2)c2cccnc2)o1
e O=C(O)c1cccc(NC(=S)NC(=O)c2ccc(-c3ccccc3)cc2)c1
Answer: b. Clc1ncnc2c1oc1ccccc12
{#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#}
4-chloro-[1]benzofuro[3,2-d]pyrimidine