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=CC1(C)OC(=O)N(c2cc(Cl)cc(Cl)c2)C1=O
[b] O=P(O)(O)CN(CP(=O)(O)O)CP(=O)(O)O
[c] CCC(C)O
[d] CNC(=O)Oc1ccccc1C1CCCC1
[e] Brc1c[nH]cn1
Answer: d
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}