Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a. CCCNS(=O)(=O)c1ccc(OCC(=O)N2CCN(Cc3ccc4c(c3)OCO4)CC2)cc1
b. CC1CN(c2cc(=O)n(-c3cccc(Br)c3)c(=O)[nH]2)CC(C)O1
c. CCOC(=O)c1ccccc1NC1c2ccccc2C(=O)N1C1CCN(C(=O)OCC)CC1
d. CC(C)(C)C(=O)COC(=O)c1cc(S(=O)(=O)N2CCCCC2)ccc1N1CCOCC1
Answer: c
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_inhib#not &NULL}a {herg_inhib__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_inhib%}
Answer: {%multiple_choice_result}