Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a. O=C(CCCN=C1NS(=O)(=O)c2ccccc21)Nc1ccc(Cl)cc1
b. CCc1ccccc1NC(=O)COc1ccc2c(c1)OCO2
c. CC(CN1C(=O)/C(=C/c2ccc(C#N)cc2)NC1=S)Cn1ccnc1
d. Fc1ccc(CN2CCN3CCCC3C2C2CCCCC2)cc1F
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}