Read the following information carefully and answer the questions given below:
B, D, P, M, F, H, K and W are eight friends who have completed their MBA programme with specialisation Marketing, Personnel, Operations, Systems and Finance. Three of them have passed with dual specialisation. Operations and Systems were not offered as dual specialisation with any of the remaining three specialisations. P has passed with Marketing and Finance and earns the least. B has passed with Operations and earns more than F, D and K. W has passed with Personnel and earns less than only M, who has passed with a dual specialisation. B is third from the top when they are arranged in descending order of earning. D earns more than K but less than F. No two of them have same earning. K, who earns more than H, has passed with Marketing whereas H has passed with dual specialisation of Personnel and Finance. None of the three is having the same set of dual specialisation. Two of them are having Systems specialisation.
Which of the following pairs has the systems specialisation ?

Options

A. DF
B. MB
C. FH
D. Data inadequate

Answer

D

Explanation

According to the given information:
Specialisation details:
P`to` Marketing and Finance
B `to` Operations
W `to` Personnel
K `to` Marketing
H `to` Personnel and Finance
M`to` Marketing and personnel or operations and systems
Either D or F `to` Systems
Earning details:
`M gt W gt B,F gt D,D gt K,K gt H and H gt P`
So, arrangement according to descending order of the earnings of the persons. `M gt W gt B gt F gt D gt K gt H gt P`

By analysing the given information we get system `overset("Opted by")rarr` Either Dor E.
Therefore, given data is inadequate.