Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (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] CCOC(=O)CCCOc1ccc(Cl)cc1C
[b] c1cc(CC2CO2)cc(CC2CO2)c1
[c] O=S(=O)(O)c1ccccc1O
[d] CCCOc1ccc(C=CC(=S)OCC)cc1OC
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}