Answer:
c. Home experienced an improvement in cellular phone-making technology.
Explanation:
It is the improvement recorded in its technology for phone-making that gave rise to the improved production of cellular phones from last year's 1050 phones to this year's 2000 cellular phones. This shows an improved productivity of about 90%. Home did not witness similar improvement in the production of pears as the quantity produced last year was also produced in the current year.