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 additional words.
Options:
[a] O=C1OC(C(O)CO)C(O)=C1O
[b] CC1=NN(c2ccccc2)C(=O)C1C=O
[c] CCC1(c2ccccc2)C(=O)NCNC1=O
[d] COCCCNc1nc(NCCCOC)nc(SC)n1
[e] Cc1cn(-c2c(Cl)cccc2Cl)c(N)n1
Answer: d
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}