Write a sed program named ins that copies a file to standard output, chang- ing all occurrences of cat to dog and preceding each modified line with a line that says following line is modified:

Given the following declaration:  int j;int sum;double sale[10][7];  which of the following correctly finds the sum of the elements of the fifth row of sale?

A. sum = 0; for(j = 0; j < 7; j++)  sum = sum + sale[5][j]; B. sum = 0; for(j = 0; j < 7; j++)  sum = sum + sale[4][j]; C. sum = 0; for(j = 0; j < 10; j++)  sum = sum + sale[5][j]; D. sum = 0; for(j = 0; j < 10; j++)   sum = sum + sale[4][j];

Which of the following is not a consideration that affects the outcome of a scanned image?

a. color b. size c. resolution d. copyright