Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a CCOC(=O)c1c(C)n(Cc2ccccc2)c2ccc(OCC(O)CN3C(=O)CNC3=O)cc12
b COc1ccc2c(c1)C(=O)[C@H](O)[C@@H](c1ccc(OC)c(Br)c1)O2
c Cn1c(Cc2ccccc2)nnc1SCC(=O)Nc1ccccc1N1CCOCC1
d O=C(CSc1nc2ccccc2c(=O)n1CCCN1CCOCC1)c1c[nH]c2ccccc12
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}