Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a. CCCOC(=O)C1c2cc3c(cc2CC(C)C1C(=O)OCCC)OCO3
b. Clc1ccc2c(c1)C(N1CCNCC1)=Nc1ccccc1O2
c. CCC1(c2ccccc2)C(=O)NCNC1=O
d. Cc1c(CC(=O)O)c2ccccc2n1C(=O)c1ccccc1
e. Nc1ccc(Cc2ccc(N)cc2)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}