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.) N#Cc1ccc([N+](=O)[O-])cc1
b.) CCOC(=O)C=C1SC(N2CCCCC2)C(=O)N1C
c.) CS(=O)(=O)c1ccc(C(O)C(CO)NC(=O)C(Cl)Cl)cc1
d.) CCN(CC)C(C)CN1c2ccccc2Sc2ccccc21
Answer: b
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}