You need to analyze 60,000,000 images stored in JPEG format, each of which is approximately 25
KB. Because your Hadoop cluster isn’t optimized for storing and processing many small files you
decide to do the following actions:
1. Group the individual images into a set of larger files
2. Use the set of larger files as input for a MapReduce job that processes them directly with
Python using Hadoop streaming
Which data serialization system gives you the flexibility to do this?

A.
CSV

B.
XML

C.
HTML

D.
Avro

E.
Sequence Files

F.
JSON