Select the correct statements related to nawigational attributes $($choose $3)$

It is better to avoid the navigational attributes from a query performance point of view

If a navigational attribute is used in an ags egate $,$ the aggregate needs to be adjusted every time there is change in the value of afteribute

Af attribute included as a characteristcs in the Infocube has the same effect as being used as a navigational attribute in the cube

A navigational attribute can be made to dioplay an attribute without removing data from the infocube

Norse of the above