Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a CCCCC(CC)COC(=O)C(CC)CCCC
b NCC1CCC(CN)CC1
c O=S(C(Cl)C(Cl)Cl)C(Cl)C(Cl)Cl
d CS(=O)(=O)OC(CCN1CCCCC1)(c1ccccc1)c1ccccc1
e COc1ccc(-c2cc(N)c3c(c2O)C(=O)c2c(N)ccc(O)c2C3=O)cc1
Answer: b
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}