体育运动展示了运动员的技能，展现了其精神面貌。对于观众而言，哪一方面更有吸引力呢？谈谈你的看法。

A. they throw the country into great disorder
B. they entail more expenditure on the part of the government
C. they usually involve direct governmental support price
D. the government has to set up special pricing systems

A.since
B.for
C.by
D.because