Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
(a) CCc1ccc(C(=O)C(C)CN2CCCCC2)cc1
(b) CCCCC(CC)CNc1ccccc1
(c) O=[N+]([O-])c1ccc(Oc2ccc(C(F)(F)F)cc2Cl)cc1
(d) CCc1ccc(C)cc1O
(e) CCC(C)CC(CC)Nc1ccc(NC(CC)CC(C)CC)cc1
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}