Figure -2 shows a block of SRAM memory that can be used to implement a memory of 8 words with 8-bits/word. An embedded SRAM, of 2048 8-bit words is built in a square configuration using multiple instances of the SRAM block in the figure. Because of the square configuration, multiplexers are used in the column decode circuitry to address each word. How many select lines are needed for this multiplexer in the column decode circuitry? Figure - 2