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, d, or e without using any additional words.
Options:
a. CCOP(=S)(OCC)Oc1ccc2c(C)cc(=O)oc2c1
b. Nc1ccccc1C(=O)OCC=Cc1ccccc1
c. CCOCCOCCCO
d. CCCCC(CC)COP(OCC(CC)CCCC)OCC(CC)CCCC
e. CC(Cl)(Cl)CCl
Answer: a
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}