1. (2022高二上·邹城期中) 阅读下面短文，从每题所给的A. B. C、D 四个选项中选出可以填入空白处的最佳选项。

My father started his own business in the 1980. For a breadwinner with seven children, it was a1decision.

To improve himself, my father spent his evening2a business school that offered two-year programs for people interested in becoming3and administrative assistants. Besides, my father read the town newspaper every morning, and I4he would inevitably read the classified section,5the "help wanted" advertisements. As a kid, I thought such6was only for people seeking a position.

One day, I asked him, "Dad, you have a job. Why do you read the 'help wanted' section every day?" "Well," he replied, "it's7for me to know what the employers want for their jobs and what are the things they're8." A light bulb went off in my mind. Yes, he obviously wasn't looking through the" help wanted" section for himself. He wanted to stay9with a hiring mindset. Meanwhile, he10something new to develop his own business.

Recently, as a runner, I was11by an article about On, a company manufacturing athletic shoes. It won net sales of $345 million in the first six months of 2022 and it receives about 70,00012per year. One of the key13the owners seek in new hiring is "an explorer mindset", which is just what my father owns.

The explorer mindset sought by On can14people outside of the "help wanted" sections of life. As a saying goes, "In so many ways, comfort is the enemy of15."