If $$E_n = \left]\{x \epsilon R: -\frac{1}{n} < x < 0\right\}$$ for $$n = 1, 2, 3, ............ $$ then $$\bigcap_{n=1}^{\infty}E_n =$$

A

R

B

{0}

C

$$\phi$$, the empty set

D

$$(-\infty, 0)$$