In archaeology, mesolithic is culture between paleolithic and neolithic. The term "Epipaleolithic" is often used for areas outside northern Europe, but was also the preferred synonym used by French archaeologists until the 1960s.
The correct answer to this question is Choice C- in two to five years.
Your medium-term goals may build upon your short term goals. For example, your short term goal may be to save $1,000. Building upon this, your medium-term goal could be to save $5,000.