Solve it on Python.

def sum_evens_2d(xss): Given a "two-dimensional list" of integers that is, a list where each value in it is a list of integers - find all the even numbers and sum them together. You will need more than a single loop for this! assume that xss is a list where each value is a list of integers. he odds anyways)- o o Examples: sum_evens_2d ([[1,2,3], [4,5,6]]) . sum-evens-2d([[1,3,5],[7,9,11]]) .sun_evens_2d([[1,2,3],[4,5],[6],[7,8,9]]) 2+4+6 = 12 2+4+6+8 == 20