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6. What are the addressing mode of the following MIPS Code: ( ) beq $s1,$t, label add $s1,$t,$t1 lw $s1,8($t) A. PC-relative addressing, Register addressing, Base or displacement addressing B. PC-relative addressing, Base or displacement addressing, Register addressing C. Base or displacement addressing, PC-relative addressing, Register addressing D. Register addressing, PC-relative addressing, Base or displacement addressing 7. which of the following is NOT involved in Binary multiplication and division implementation in computer? ( ) A. addition/subtraction operations B. logical or operation C. comparison operations D. shift operations 8. Which of the following is the IEEE floating point Single precision number representation of " +".() A. 10000000000000000000000000000000 B. 1111111100000000000000000000000 C. 00000000000000000000000000000000 D. 01111111100000000000000000000000 9. Which is the 2 's Complement representation of number " +8"?() A. 11011111 B. 00001001 C. 10001001 D. 00001000 10. As for a RAM with 4KB (Kilobyte) memory, if there are 10 address lines (each line corresponds to a bit), we need how many data lines (bits) ( ) A. 4(=0.5byte/ location) B. 8 (=1 byte/location) C. 16 (=2 byte/location) D. 32 (=4 byte/location)