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 CC(C)C1CCC(C)C2OC12
b CN1CCC(n2[nH]c(-c3ccccc3)c(Cc3ccccc3)c2=O)CC1
c CCP(=S)(OC)SCSCSP(=S)(CC)OC
d CCCOCC(C)OCC(C)O
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}