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 other words.
Options:
a.) O=C1Nc2ccc(Cl)cc2C(c2ccccc2Cl)=NC1O
b.) CC(=O)Nc1cccc(N=Nc2ccc(N(C)C)cc2)c1
c.) CCOC(=S)SSSC(=S)OCC
d.) O=S(=O)(O)NC1CCCCC1
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}