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) Cc1ccsc1-c1nc(CN2CCN(C)C(=O)[C@@H]2C)c(C)o1
(b) COc1ccc(-c2ccc(CCC(=O)O)n2CC(=O)Nc2cccc(OC)c2)cc1
(c) COc1cc(C(=O)Nc2ccc(Br)cc2C(=O)c2cc(OC)c(OC)c(OC)c2)cc(OC)c1OC
(d) O=S([O-])OC1CS(=O)(=O)CC1c1ccccc1.[Na+]
Answer: a
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}