Which of the following statements are correct?

A. In 3-D structure, the solid-wedge is used to indicate a bond projecting out of the plane of paper, towards the observer.
B. Bonds that lie behind the plane are indicated with a dashed Wedge
C. In general, -bonds provide the most reactive centres in the molecules containing multiple bonds.
D. For tetrahedral C atoms, we draw the two bonds that are in the plane of the page with an angle of approximately between them.
E. The change in hybridisation does not affects the electronegativity of carbon.
Choose the correct answer from the options given below.