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If $$s$$ and $$t$$ are different positive integers, which of the following guarantees that $$\frac{t}{s}$$ is an integer?
Indicate all such statements.
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A.$$s \lt t$$
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B.$$s=t^{2}+t$$
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C.$$t=(s+1)(s-1)$$
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D.$$s^{2}$$ is a factor of $$t^{2}$$
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E.$$(s+1)$$ is a factor of $$(t+1)$$
D显示答案
