Answer:
Ella got the highest marks.
Explanation:
Given that:
Camilla got 4/5 of the 200 marks.
Marks of Camilla =

Marks of Camilla = 160 marks
Lincoln got 44% of the 200 marks.
Marks of Lincoln =

Marks of Lincoln = 88 marks
Ella got 198 out of 200.
On comparing,
198 is the highest out of 200.
Hence,
Ella got the highest marks.