Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any additional words.
Options:
a Clc1ccc(C(Cl)(Cl)Cl)c(Cl)c1
b CC(C=O)=Cc1ccccc1
c CCCNC(=O)NS(=O)(=O)c1ccc(Cl)cc1
d CCOP(=S)(OCC)SCn1nnc2ccccc2c1=O
Answer: d
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}