Which of the following creates a rank 2 tensor (assuming a prior statement import numpy as np)?

Select one:

Which of the following creates a rank 2 tensor (assuming a prior statement import numpy as np) ? Select one: a. np.array ([1,2,3,4]) b. np.array ([ [1, 2] , [3, 4] ]) c. np.array( [12]) d. np.array( [1,2],[3,4])