Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any additional words.
Options:
a. CC(C#N)N1CCOCC1
b. Cc1cc(C)n(SC(Cl)(Cl)Cl)n1
c. CCCCC(CC)CNCC(C)(N)CNCC(CC)CCCC
d. CN(C)CCN(C)n1cc(-c2ccccc2)c2ccccc21
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}