Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
[a] N#Cc1ccc2c(c1)N(CCCN1CCC(O)CC1)c1ccccc1S2
[b] CCCCC(CC)COP(=O)(OCC(CC)CCCC)OCC(CC)CCCC
[c] CC(C)CCC(=O)O
[d] c1nc(NC2CC2)c2ncn(CC3CC3)c2n1
[e] O=C(O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)F
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}