阅读下列短文，从每题所给的四个选项中，选出最佳答案。
A
When middle-aged Alex quit his job and made up his mind to become a self-employed writer, no one could tell for sure whether he would succeed or not．He found a cold storage room in a building, set up a used typewriter and settled down to work．
After a year or so, however, Alex began to doubt himself．He found it was difficult to earn his living by selling what he wrote．But Alex determined to put his dream to the test—even though it meant living with uncertainty and fear of failure．This is the shadowland（虚幻世界）of hope, and anyone with a dream must learn to live there．
One day Alex got a call, "We need an assistant, and we're
