80mm and 120mm are common sizes for which of the following PC components?

How do the Internet and the World Wide Web make it possible for small businesses to compete with large companies?

(a) Businesses on the Internet have can have virtually unlimited merchandise catalogs and can be open on a 24-by-7 basis. (b) Smaller businesses have to pay less than large businesses in order to conduct their transactions online. (c) Training and maintenance costs are lower for smaller businesses than for larger businesses. (d) Smaller businesses are more likely to take advantage of the newest Internet technologies.

In the Tracking Gantt chart, which bars are red?

A. variance bars B. critical bars C. noncritical bars D. baseline bars