Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
[a] COc1cc2c3c(c1O)C1(C=CC(=O)C=C1)CC3N(C)CC2
[b] Nc1ccc(Cc2ccc(N)c(Cl)c2)cc1Cl
[c] C=C(C)C1Cc2c(ccc3c2OC2COc4cc(OC)c(OC)cc4C2C3=O)O1
[d] O=C(C=Cc1ccccc1)OCC=Cc1ccccc1
[e] C=CC1CC2C=CC1C2
Answer: e
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}