Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any additional words.
Options:
a. CC(C)OP(=S)(CCl)Sc1ccc(F)cc1
b. C=C(C)c1ccccc1
c. CCOP(=O)(OCC)N(C)c1ccccc1
d. O=[N+]([O-])c1cc(C(F)(F)F)cc([N+](=O)[O-])c1Cl
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}