Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (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: CCN(CC)C(=O)CSc1ccc(Cl)nn1
b: Clc1ccc2ocnc2c1
c: CCCN=C(C(OC)c1ccccc1)N1CCCCCC1
d: CCCCCCCCCCCCCCOCCOCCOCCOCCOCCOCCOCCO
e: O=c1[nH]cc(F)c(=O)[nH]1
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}