Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
[a] O=CC1CC=CCC1
[b] CCS(=O)CCSP(=O)(OC)OC
[c] COP(=O)(OC)SC(CC(=O)OC(C)C)C(=O)OC(C)C
[d] CCOP(O)(=S)CC
[e] COc1c(OCc2ccc(-c3ccccc3-c3nnn[nH]3)cc2)cc(C)nc1C
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}