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: CC(C)N(C(=O)CCl)c1ccccc1
b: COP(=O)(OC)Oc1ccc([N+](=O)[O-])cc1
c: COc1ccccc1C=O
d: O=C(O)Cc1ccccc1Oc1c(Cl)c(Cl)cc(Cl)c1Cl
e: Clc1cc(Cl)c(Cl)c(Cl)c1Cl
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}