Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences in the following questions.

 Increasing urbanization has led to problems. Cities are centers of civilization and culture.

A. There was a rise by 30% in the rate of unemployment.

B. There was a rise of 30% in the rate of unemployment.

C. There was a rise to 30% in the rate of unemployment.

D. There was a rise up 30% in the rate of unemployment.

A. The number of students changed dramatically in June.

B. The number of students did not stay the same in June.

C. The number of students fluctuated wildly in June.

D. The number of students went up and then fell in June.

A. The share price fluctuated; as the upward trend.

B. The share price fluctuated; consequently, the trend was slightly upward.

C. The share price fluctuated; due to the upward trend.

D. The share price fluctuated; however, the trend was slightly upward.

A. The industrial production fell quickly in ten years from 1990 to 2000.

B. The industrial production fell steadily in ten years from 1990 to 2000.

C. The industrial production rose sharply in ten years from 1990 to 2000.

D. The industrial production rose slightly in ten years from 1990 to 2000.

A. The availability of seasonal produce experienced a stable period.

B. The availability of seasonal produce is recorded leveling off.

C. The availability of seasonal produce hardly moved up and down.

D. The availability of seasonal produce went through a period of erratic.

A. The demand for labor force declined.

B. The demand for labor force increased.

C. The demand for labor force reduced.

D. The demand for labor force remained stable.

A. The student enrollment of the university dropped by 5%.

B. The student enrollment of the university dropped for 5%.

C. The student enrollment of the university dropped in 5%.

D. The student enrollment of the university dropped to 5%.