The SQL ________ clause includes one or more columns from which data are retrieved

Column charts, pie charts, and line charts are examples of common chart ________

Fill in the blank(s) with correct word

In a splay tree, how is the rank of a node stored?

a. an extra array stores the information b. a linked list stores the information c. directly, in each node d. indirectly, by storing the size in each node e. the rank is not stored at all