Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a Nc1c(I)cc(I)c(C(=O)N(CCC(=O)O)c2ccccc2)c1I
b O=C1CCOc2ccccc21
c COc1ccc2c(c1)c(CC(=O)O)c(C)n2C(=O)c1ccc(Cl)cc1
d Nc1ccc(Cc2ccc(N)cc2)cc1
e Cc1ccc(N=CN(C)Sc2ccc(Cl)cc2)c(C)c1
Answer: c
Task: Please answer the multiple choice question.
Question: Which molecule has the highest {acute_toxicity__names__noun}?
Constraint: Even if you are {#uncertain|not sure!}, you must pick either {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%acute_toxicity%}
Answer: {%multiple_choice_result}