State whether the following statements are True or False with proper justification. Answers without proper justification will not be given any marks.

1. More addressing modes an instruction set architecture supports, better is the speed of execution.

2. During instruction fetch operation, the instruction is transferred to the Memory Buffer Register (MBR) from the Main Memory before it is transferred to the Instruction Register (IR).

3. In a n-bit processor, n usually refers to the width of internal registers and the address bus.