The area of parallelogram ABCD is:
DC×DL
AD×DL
The area of a parallelogram is the product of base and height.
In the above figure,
In parallelogram ABCD: AD and BM are base and height respectively.
In parallelogram DCBL: DC and DL are base and height respectively
Among the options, only AD×BM and DC×DL are two correct products of respective side and altitude and hence represent the area of the parallelogram. So, option C and D are correct.