Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (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] COc1coc(CSP(=O)(OC)OC)cc1=O
[b] FC(F)(F)c1nc2c(Cl)c(Cl)c(Cl)c(Cl)c2[nH]1
[c] C=CCOC(=O)OCCOCCOC(=O)OCC=C
[d] COc1c(C)c2c(c(O)c1CC=C(C)CCC(=O)O)C(=O)OC2
[e] CCCCC(CC)COCC1CO1
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}