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, or c without using any other words.
Options:
a. Cc1ccc(-n2c(SCC3CCCCO3)nnc2-c2ccco2)cc1
b. O=C(CSc1nc2ccc([N+](=O)[O-])cc2s1)NCC1CCCO1
c. NC(=O)C(c1ccc(Cl)cc1)c1ccc(Sc2ccc(Cl)cc2)nn1
Answer: b
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}