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 other words.
Options:
(a) COC(=O)C(OC(C)=O)=C(OC(C)=O)C(=O)OC
(b) C=C(C)C(OC(C)=O)OC(C)=O
(c) CN(C)C(=O)Cl
(d) CCCCC(CC)COCCC(=O)O
(e) CCSC(C)CC1CC(=O)C(C(=O)CC)C(=O)C1
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}