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) Cc1c([N+](=O)[O-])cccc1[N+](=O)[O-]
b) N#Cc1ccc([N+](=O)[O-])cc1
c) CC(=O)Oc1ccc(Oc2c(I)cc(C(=O)O)cc2I)cc1I
d) CNC(=O)ON=C1CCCC1(C)[N+](=O)[O-]
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}