Most people hate change, which is sad since we often go through intense changes in life. And for some of us, even the smallest changes can upset our day. So the question is: Why do most of us find making adjustments to our lives so hard? Fear of change is nothing new. Over a century ago, the Parisians were unhappy over a particular addition to their city: the Eiffel Tower. In fact, the citizens were so angry about the plans for the tower that they protested its construction. As strange as it may seem, their anger was completely natural. They were given no choice about the huge change that was going to be made, so they became angry. But we get upset over changes even when we do have a say in the matter and think about them carefully. Changes are brought about every day by the decisions we make: which school to attend, which job to take, whom to marry. Voluntary changes also make most of us uneasy because we don't know how those changes will affect our future. People have discovered that the key to overcoming the fear and anger associated with change is to be flexible . When they are flexible, people can adapt to new situations more easily. Being flexible is especially important in the 21st century as technology makes change occur faster than ever before. Those who oppose change, especially with technology in the workplace, may find themselves out of a job. When change comes, and you have no choice but to face it, embrace it. A positive attitude helps a lot. In fact, the change may turn out to be the best thing for you. That new job you got may end up being much better than your old one. You may make the best friends of your life in the new city you moved to. Don't merely focus on how you feel about change; instead decide to accept the change. The change is the reality, and it's up to you whether the change will be a success or a failure. According to the passage, it can be inferred that what won't disturb us are    _   .
the changes that have agreement with one's will the small changes we meet in our daily life the changes whose effect we can predict and control the changes that we discuss or consider thoroughly