Disk duplexing is the same as what type of disk redundancy?

What does a blue wavy line mean if it appears in your document?

a. A blue wavy line is the same as a red wavy line but in a different color theme. b. A wavy blue line means there may be a common usage error. c. A blue wavy line is the same as a green wavy line but in a different color theme. d. A blue wavy line means there is a spelling error.

Which of the following class members should usually be private?

a. Methods. b. Constructors. c. Variables (or fields). d. All of the above.