Using the following two finite-length sequences: x = {0, 1, 7, 6, 1, 2, 0, 7, 1, 0, 3, 4}; h(1, 1, 1}; (a) Obtain the linear convolution of the two sequences. (b) Obtain the circular convolution of the two sequences. (c) Obtain the linear convolution of the two sequences using the overlap-and-add method with a partition size of 4. (d) Obtain a factor of two interpolation of the sequence x with filter h using: (i) upsampling followed by filtering, and (ii) the polyphase method.