Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a CCOCCCCO
b CN(C)CCN(C)n1cc(-c2ccccc2)c2ccccc21
c OCCN1CCN(CCCN2c3ccccc3Sc3ccc(Cl)cc32)CC1
d CCCCCC
e CC1C(=O)OC2CCN3CC=C(COC(=O)C(C)(O)C1(C)O)C23
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}