Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any additional words.
Options:
(a) CNC1=Nc2ccc(Cl)cc2C(c2ccccc2)=[N+]([O-])C1
(b) CCCCCCC(CC=CCCCCCCCC(=O)OCCOC)OC(C)=O
(c) CC(C)(C)OC(=O)CCl
(d) CC(=O)CC(=O)N(C)C
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}