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, d, or e without using any other words.
Options:
a.) Nc1ccccc1[N+](=O)[O-]
b.) Nc1ncnc2c1ncn2C1OC2=CC(C(=O)O)(C(O)C(=O)O)OC2C1O
c.) CCOP(=O)(OCC)Oc1ccc(SC)c(C)c1
d.) CC(C)c1cccc(OC(=O)N(C)N=O)c1
e.) Cc1ccc2[nH]nnc2c1
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}