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, d, or e without using any additional words.
Options:
a: O=P(OCCCl)(OCCCl)OC1CC(C(Br)CBr)CCC1Cl
b: C=C(C)C(=O)OCC(CC)(COC(=O)C(=C)C)COC(=O)C(=C)C
c: CCCCCOP(=O)(OCCCCC)OCCCCC
d: COC(=O)N(CCCl)N=O
e: ClCCCBr
Answer: e
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}