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.) CC1(C)OC(=O)N(c2cc(Cl)cc(Cl)c2)C1=O
b.) O=C(O)c1nc(Cl)ccc1Cl
c.) CNC(=O)ON=C1COCCS1
d.) CCOP(=S)(OCC)SC1OCCOC1SP(=S)(OCC)OCC
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}