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 other words.
Options:
[a] CN1Cc2ccccc2C(=O)c2cc(CC(=O)O)ccc21
[b] CC1=NN(c2ccccc2)C(=O)C1
[c] CCc1ccc(C(c2ccc(CC)cc2)C(Cl)Cl)cc1
[d] COc1cc(C(=S)N2CCOCC2)cc(OC)c1OC
[e] O=C(CO)c1coc(=O)c2c(O)cccc12
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}