i need to solve these question

D. Identify both the mask and the Boolean operation needed to accomplish each of the following objectives 1 Put is in the middle four bits of an ehtit pattern without sturbing the other bits 2 Take the complement the four bits of a potom without changing the other Choral but the last oricant boit pattern without be the least grificant it Change an uppercase ASCII code derder to correcording owned 4. D. Identify both the mask and the Boolean operation needed to accomplish each of the following objectives 1. Put is in the middle four bits of an eight-bit pattern without disturbing the other bits. 2. Take the complement the first four bits of an 8-bit pattern without changing the other bits. 3. Clear all but the least significant bit of an 8-bit pattern without disturbing the least significant bit 4. Change an uppercase ASCII code character to its corresponding lowercase code