Priya
Gaurav
Kavita
Raju
The correct option is Raju.
Firstly, Raju got more marks than Mukesh but less than Priya. So, the order of names according to marks (ascending): Mukesh, Raju, Priya.
Then, Priya got more marks than Gaurav and Kavita, and also, Gaurav got less marks than Mukesh but he is not the lowest. Hence, the lowest score must be of Kavita.
Now, the order: Kavita, Gaurav, Mukesh, Raju, Priya.
The same order in descending way: Priya, Raju, Mukesh, Gaurav, Kavita.
According to the question, the person who is second in the descending order: Raju