If you wanted to find if a particular number was present in an array of one million integers, which of the following approaches will not work? Use a simple loop, that looks in each of the cells. Use a multithreaded approach, where you have 100,000 threads each of which looks in 10 cells. Use a multithreaded approach, where you have 10 threads each of which looks in 100,000 cells. Using a multithreaded approach, where you have 1,000 threads each of which looks at 1,000 cells. They would all work.