Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any other words.
Options:
a. Cc1cc(C(=O)c2ccccc2)ccc1N
b. O=C(O)c1ccc2cc(O)ccc2c1
c. CC(=O)Nc1cc(NS(=O)(=O)C(F)(F)F)c(C)cc1C
d. CCN(CC)C(=O)c1cccc(OC)c1O
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}