A.I. Explanation:

Option 1: "with the awesome work"

Explanation: This option is incorrect because the phrase 'awesome work' does not align with the context of the text. The text discusses Mark's employment and financial situation, but does not mention anything about the quality or nature of the work being 'awesome.' Therefore, this option does not fit the overall theme of the text.

Option 2: "with the casual task"

Explanation: This option is incorrect as 'casual task' implies a temporary or informal job, which does not accurately reflect Mark's situation. The text indicates that Mark was employed and earning a steady income, which contradicts the notion of a 'casual task.' Thus, this option does not relate to the main idea presented.

Option 3: "with the custom trend"

Explanation: This option is incorrect because 'custom trend' does not relate to the context of Mark's employment or his financial situation. The text focuses on Mark's work and his intention to buy a vacuum cleaner for his mother, rather than any trends or customs. Therefore, this option does not connect with the details provided.

Option 4: "with the day work"

Explanation: This option is correct as 'day work' refers to the type of employment Mark engaged in, which aligns with the context of the text. The text describes how Mark worked for 8 hours a week, effectively categorizing his employment as 'day work.' This phrase captures the essence of his job and supports the overall theme of improving his financial situation.