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, or d without using any other words.
Options:
[a] Cc1cc(C)nc(C)c1
[b] CC(C)N(CCO)C(C)C
[c] C=C[Si](OC(C)(C)C)(OC(C)(C)C)OC(C)(C)C
[d] CCC(C)(C)c1ccc2c(c1)C(=O)c1ccccc1C2=O
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}