Give me direct answwer is enough (ABCD)

Given the following memory addresses and values, and a one-address machine with an accumulator, what is the effective address (EA) if the current instruction is LOAD 20 using PC- relative addressing mode, and the content of the program counter is 20? 10 50 20 60 30 70 40 80 50 90 O A EA = 20 B. EA = 60 EA = 40 D. EA = 80 Which of the following combinational circuits selects one out of a few output lines based on the pattern of the input lines? O A Decoder B. Demultiplexer C Read-Only Memory D. Multiplexer Assuming a 3.2 GHz processor processes floating-point operations at the average rate of 8 cycles per floating-point operations. What is the MFLOPS (millions of floating-point operations per second) rate of the processor? A 4 x 10-7 B. 4 X 108 4 x 102 D. D. 4 x 10-1