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, d, or e without using any other words.
Options:
a. CCCSP(C)(=S)SC(CC(=O)OCC)C(=O)OCC
b. CC1C(=O)OC2CCN3CC=C(COC(=O)C(C)(O)C1(C)O)C23
c. C=CCN(CC=C)C(=O)CCl
d. CCC(C)C(C)CO
e. CCOC(=O)C1(c2ccccc2)CCN(CCOCc2ccccc2)CC1
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}