____ computers are a good option if you work mostly in one place and have plenty of space in your work area.

A(n) ______ begins at a vertex v, passes through every edge exactly once, and terminates at v.

a. multigraph b. spanning tree c. Euler circuit d. Hamilton circuit

If you run out of disk space on your original hard disk, you can add a second hard drive inside the system unit or use a(n) ____.

A. external hard disk B. USB port C. internal flash drive D. capacity drive