Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
a CP(=O)(Oc1ccccc1)Oc1ccccc1
b Cn1c(=O)c2c(ncn2CC2OCCO2)n(C)c1=O
c CCOP(=S)(OCC)Oc1ccc2c(C)cc(=O)oc2c1
d C=CC(=O)OCCCCCCCCCC
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}