Hi Can you help me?

how to calculate and which ist the right answer?

 

Thank you

 

A company plans to deploy N+2d:1n protection on a 7-node Dell EMC Isilon cluster. How much capacity

will be used to store a 1536 KB file?

A. 1280 KB

B. 1792 KB

C. 1920 KB

D. 2048 KB