Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
a. CCP(=O)(OC)Oc1ccc([N+](=O)[O-])cc1
b. CC(=O)Nc1c(I)cc(I)c(OCCOC(C)C(=O)O)c1I
c. CC(=O)CCc1ccc(O)cc1
d. CNC(=O)Oc1cc(C)ccc1C(C)C
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}