27) hex digits in a byte is A) 2 B)4 C) 8 D) none of them 28) hex digits in a doubleword is A) 2 B)4 C) 8 D) none of them 29) In a PC using an Intel 80x86 microprocessor, the number of bits in the EBX register is A) 8 B) 16 C) 32 D) none of them 30) What is the result of the following additions of quadword size numbers 4E+71 A) BF B) CF C) AF D) FB 31) What is the result of the following additions of word size numbers F4-25 A) BF B) CF C) AF D) none of them 32) What the Binary Representation for the Decimal number 53 A) 110100 B) 110101 C) 110110 D) none of them