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 additional words.
Options:
a: CN(C)C(=O)Nc1ccc(-n2nc(C(C)(C)C)oc2=O)c(Cl)c1
b: O=S1(=O)CC(Cl)(Cl)C(Cl)(Cl)C1
c: CCCC(=O)NP(=O)(OC)SC
d: C=C(C)C1CC=C(C)CC1
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}