One cannot age a tree by its rings if that tree is located in which of the following forests

The anatomy of springwood shows some peculiar features. Identify the correct set of statements about springwood.

$(a)$ It is also called as the earlywood

$(b)$ In spring season cambium produces xylem elements with narrow vessels

$(c)$ It is lighter in colour

$(d)$ The springwood along with autumnwood shows alternate concentric rings forming annual rings

$(e)$ It has lower density

Choose the correct answer from the options given below:

Bulliform cells are the modification of

The periderm includes

Assertion: Cambium is a lateral meristem and cause growth in width.
Reason: Cambium is made up of fusiform and ray initials in stem.

Cork is used as the stopper for bottles, for shock absorption and insulation because of