Occupational mobility as applied to factors of production means the ease by which A. factors can be transferred from one form of use to another B. Resources can be transferred from one place to another C. resources can be transferred from one form to another D. factors can be transferred from one place to another

Step 1: Understand occupational mobility. Occupational mobility of factors of production is the ease with which factors (like labor) can shift from one occupation or form of use to another, not changing locations. Step 2: Eliminate incorrect options. Option B: Resources from one place to another describes geographical mobility. Option D: Factors from one place to another also describes geographical mobility. Option C: Resources from one form to another is close but uses "resources" (broader term) instead of "factors of production," and lacks "use." Step 3: Identify correct option. Option A exactly matches: factors transferred from one form of use to another. A