In economics, If two goods are complements, then the cross elasticity of demand is negative. That means a good's demand is increased when the price of another good is decreased. Conversely, the demand for a good is decreased when the price of another good is increased. It is opposite of substitute goods.
In this question, the sets of numbers given in the alternatives are represented. The columns and rows of Matrix I are numbered from 0 to 4 and that ofMatrix II are numbered from 5 to 9. A letter from these matrices can be represented first by its row and next by its column, e.g., D can be represented by 02, 10,etc., and 'R' can be represented by 55, 67, etc. Similarly you have to identify the set for the word 'BEAR'.