Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
[a] CCCCC(CC)COP(OCC(CC)CCCC)OCC(CC)CCCC
[b] Cc1c(Cl)c(Br)c(Cl)c2[nH]c(C(F)(F)F)nc12
[c] Oc1c(Cl)cnc(Cl)c1Cl
[d] CNC(=O)Oc1cccc2c1OCCO2
[e] O=C1C=CC(=O)N1c1ccccc1
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}