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, or d without using any additional words.
Options:
[a] CCOP(=S)(OCC)SCSC(=S)N(C)C
[b] CC(=O)OC(C(Cl)(Cl)Cl)P(=O)(Oc1ccccc1)Oc1ccccc1
[c] Clc1ccc2nsnc2c1NC1=NCCN1
[d] CNC(=O)ON=CC(C)(C)S(C)(=O)=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}