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] CCCCOP(=O)(CC)SC
[b] CC1(O)CCC2CC1C2(C)C
[c] O=NN1CCCCC1
[d] O=Cc1ccco1
[e] CC(=O)Nc1cccc2c3c([nH]c12)CCCC3
Answer: c
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}