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 additional words.
Options:
[a] ClC1=C(Cl)C2(Cl)C(C(Cl)Cl)CC1(Cl)C2(Cl)Cl
[b] C1CCC(NC2CCCCC2)CC1
[c] N#Cc1sc2c(=O)c3ccccc3c(=O)c=2sc1C#N
[d] O=c1nc2[nH]c(=O)[nH]cc-2[nH]1
Answer: c
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}