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] CCCC[C@@H](CNC)NC[C@H](Cc1ccc(O)cc1)NCCc1ccc(OCC)cc1
[b] COc1ccc(-c2cc(-c3ccccc3)nc(SCC(=O)Nc3nccs3)c2C#N)cc1
[c] COCCNC(=O)c1oc2ccc3c(c2c1C)C(O)CC(C)(C)O3
[d] CC(=O)N1CCN2C(=O)C1CCCC(=O)c1cc(C(C)C)ccc12
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}