In the context of in-house software development options, companies that develop software for sale are called _____.

Answer the following statements true (T) or false (F)

1. Items may be added to a list and removed from a list while the world is running. 2. The list automatically expands as items are added to it, and it automatically shrinks as items are removed from it. 3. An array can have additional elements added to it while the world is running. 4. The first position in a list is position 1. 5. The first position in an array is position 0.

Two tasks that are operating ________ are both making progress at once.

a. sequentially b. concurrently c. iteratively d. recursively