Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
(a) CCC=CCCOCC=O
(b) COc1cc2c3c(c1OC)-c1ccccc1CC3N(C)CC2
(c) CCCCCCCCCCCCCCCCO
(d) C=COCCOCC1CO1
(e) CC(=O)Nc1ccc2c(c1)sc1ccccc12
Answer: c
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}