Giả sử \(\mathop {\lim }\limits_{x \to {x_0}} f(x) = a\) và \(\mathop {\lim }\limits_{x \to {x_0}} g(x) = b\).

A. \(\mathop {\lim }\limits_{x \to {x_0}} \frac{{f(x)}}{{g(x)}} = \frac{a}{b}{\rm{ }}\)

B. \(\mathop {\lim }\limits_{x \to {x_0}} \left[ {f(x) + g(x)} \right] = a + b\)

C. \(\mathop {\lim }\limits_{x \to {x_0}} \left[ {f(x).g(x)} \right] = a.b\)

D. \(\mathop {\lim }\limits_{x \to {x_0}} \left[ {f(x) - g(x)} \right] = a - b\)