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) ClC1(Cl)C2(Cl)C3C4(Cl)C1(Cl)C1(Cl)C4(Cl)C(Cl)(Cl)C3(Cl)C21Cl
b) CCCOC(=O)CC(SP(=S)(OC)OC)C(=O)OCCC
c) CC(C)NC(=N)NC(C)C
d) C=CCNC(N)=S
Answer: d
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}