When a binary tree is used to facilitate a search, it is referred to as a

A mixed cell reference:

A) causes a potential error. B) occurs when a formula directly or indirectly refers to the cell containing the formula. C) contains absolute or relative cell references, but not both. D) contains both an absolute and a relative cell reference.

Which of the following printers requires manual alignment?

A. Laser B. Dot matrix C. Inkjet D. Thermal