Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a. CN(N=O)c1ccc(N=O)cc1
b. COP(=S)(OC)Oc1ccc(S(C)(=O)=O)c(C)c1
c. CC(=O)c1ccccc1
d. Clc1cc2c(cc1Cl)Oc1cc(Cl)c(Cl)cc1O2
e. CCOC(C1=NCCCN1)c1ccc(Cl)cc1
Answer: c
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}