Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any other words.
Options:
a. CC(=O)CC(C)C
b. CCCCCCOC(=O)CCCCCCCC(=O)OCCCCCC
c. OCC(O)C(O)C(O)C(O)CO
d. C1CN1P1(N2CC2)=NP(N2CC2)(N2CC2)=NP(N2CC2)(N2CC2)=N1
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}