How much is ZI,RW,RO & Code in arduino

[Vindhyachal.takniki]

1. I am using Arduino 1.8.1 & made a code in it. Board it Atemga2560 R3.
2. Final code size is:
   a) 674 bytes (8%) of dynamic memory, leaving 7518 bytes for local variables. Maximum is 8192 bytes
   b) 22440 bytes (8%) of program storage space. Maximum is 253952 bytes.
   
3. How to get below in arduino:
   a) Zero Initialize (ZI) or .bss
   b) Read Write (RW) or .data
   c) Read only (RO)
   d) Code or .text
   
4. In 3c, what is other name for RO area, like ZI is called .bss.

5. This is correct right?
   a) SRAM: .bss + .data + Stack + heap
   b) Flash: .text + RO