A(n) ____________________ chart uses bars of varying heights to illustrate values in a worksheet.

When you drag a control across a Form, _________ appear to help you position the control with respect to the Form’s edges and other controls.

a) edge lines b) guide lines c) position lines d) snap lines

The C++ language system provides access to a large collection of previously written and tested program components that are organized in _________________.

Fill in the blank(s) with the appropriate word(s).