Double-clicking the Hand tool does what?

The syntax _____________ specifies that the upper bound of a wildcard is type T.

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

Originally, a classful routing system assigned IP addresses by classifying networks as ____ to maximize the number of available IP addresses for each network.

A. Class 1 through Class 6 B. Class 1 through Class 10 C. Class A through Class E D. Class A through Class J