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, or c without using any other words.
Options:
a C=CCn1c(=O)c2[nH]c(C)nc2n(CC(C)C)c1=O
b O=C(O)Cc1ccc(C2CCCCC2)c(Cl)c1
c CC(c1ccc(Cl)c(Cl)c1)N1N=C(N)CC1=O
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}