Which of the following statements is true?

Answers:	a. If using the units-of-activity method, it is possible to depreciate more than the depreciable cost.
	b. Regardless of the depreciation method, the amount of total depreciation expense during the life of the asset will be the same.
	c. If using the straight-line method, the amount of depreciation expense during the first year is higher than that of the double-declining-balance method.
	d. If using the double-declining-balance method, the total amount of depreciation expense during the life of the asset will be the highest.