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) CC(C)=CCC1C(=O)N(c2ccccc2)N(c2ccccc2)C1=O
b) O=C(Cl)C(Br)CBr
c) CCCOC(=O)CCC(=O)OCCC
d) C=CC(C)NC(=S)NNC(=S)NC
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}