Task: Answer the multiple choice question.
Question: Which compound exhibits a -4.865\% human ether-à-go-go related gene (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) CNC(=S)Nc1cc(C(F)(F)F)ccc1Cl
(b) CCOC(=O)C1CCCN(C(=O)c2c(-c3ccccc3Cl)noc2C)C1
(c) C#CCn1c(=O)cc(C)c2ccccc21
(d) C[C@@H](CN1CCC(Cc2ccccc2)CC1)[C@@H](O)c1ccc(O)cc1.Cl
Answer: a. CNC(=S)Nc1cc(C(F)(F)F)ccc1Cl
{#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#}
CNC(=S)Nc1cc(C(F)(F)F)ccc1Cl
CNC(=S)Nc1cc(C(F)(F)F)ccc1Cl
1-[2-chloro-5-(trifluoromethyl)phenyl]-3-methylthiourea