Based on your experiences and the material covered in the course, which of the following statements is true for deep Web?

Group of answer choices

$($A$)$ Deep Web cannot be reached by today's search engine technology.

$($B$)$ The surface Web is a part of the deep Web.

$($C$)$ The deep Web pages can be indexed by some search engines.

$($D$)$ The deep Web is growing faster than the surface Web.

$($E$)$ Crawling and indexing the deep Web remains a grand open challenge today.