Ifyou have classified your customers as 'college-grads', 'young parents', or 'singles,' you used a technique known as market ____?.

When considering to use the Currency data type, a user should understand that they can store data with one to ________ decimal places

A) two B) four C) six D) ten

Which one of the following values is stored in the letter variable?

Look at the following code sample: ``` string tree = "Pear"; char letter = tree[3]; ``` a. P b. e c. a d. r