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) CN(C)c1ccc(N=Nc2ccccc2)cc1
(b) CCCCCCCCC1OC1CCCCCCCC(=O)OCC1(CC)OC1CCC
(c) CNC(=O)C(C)SCCSP(=O)(OC)OC
(d) CCCC(C)OC(N)=O
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}