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] C#CC(O)C=CC
[b] COP(=O)(OC1CCCCC1)Sc1ccc(Cl)cc1
[c] Cc1ccc2c(-c3cccc(O)c3)nc(=O)n(C(C)C)c2c1
[d] CCc1ccc2[nH]c(C(F)(F)F)nc2c1
[e] O=NN1CC=CCO1
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}