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 additional words.
Options:
a Cc1nn2c(N3CCOCC3)cc(C(C)C)nc2c1-c1ccccc1
b Cc1noc(C)c1COc1ccc(C(=O)Nc2ccccc2)cc1
c Cc1cccc(NC(=O)CSc2nc3c(c(=O)[nH]2)CCCC3)c1C
d Cc1ccccc1CS(=O)(=O)CCC(=O)NCCCN1CCN(c2ccccc2F)CC1
Answer: d
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}