A. [[11, 12, 13], [14, 15, 16], [17, 18, 19]]
B. Error
C. [11, 12, 13], [14, 15, 16], [17, 18, 19]
D. [11, 12, 13, 14, 15, 16, 17, 18, 19]

Solution

A. [[11, 12, 13], [14, 15, 16], [17, 18, 19]]

Explanation

The code shown above shows a list comprehension which adds 10 to each element of the matrix A and prints it row-wise. Hence the output of the code is: [[11, 12, 13], [14, 15, 16], [17, 18, 19]]