Final answer:
The correct answer is a) attributing.
Step-by-step explanation:
The correct answer is a) attributing. By attributing your failures to everyone except yourself, you are assigning the cause or responsibility for those failures to others. This common pattern of blaming others for our own failures is known as external attribution. In contrast, acknowledging your failures would involve taking personal responsibility for them. So, attributing is the most suitable choice given the context of the sentence.