Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a. CC(C)(C)c1cc(CCC(=O)NCCN)cc(C(C)(C)C)c1O
b. CCOP(=S)(OCC)SCn1nnc2ccccc2c1=O
c. CCCCOC(=O)c1ccccc1C(=O)OCCCC
d. CCOC(=O)c1ccc(N)cc1
e. CC(C)(COCC1CO1)COCC1CO1
Answer: b
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}