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, or d without using any additional words.
Options:
a.) CCc1ccc(C(c2ccc(CC)cc2)C(Cl)Cl)cc1
b.) O=C(Cl)C(c1ccccc1)c1ccccc1
c.) CCCCCCCCOC(CBr)c1ccc(C2CCCCC2)cc1
d.) S=c1[nH]c2ccccc2[nH]1
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}