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, d, or e without using any other words.
Options:
(a) CC1=C(C(=O)Nc2ccccc2)SCCO1
(b) N#CC1CCC2OC2C1
(c) CC(C)C(Br)C(=O)NC(N)=O
(d) CCCCCN(CCCCC)N=O
(e) CCN(CC)CCSSCCN(CC)CC
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}