# data[].attributes.body
it will be 3 groups of 7.

# data[].attributes.body
I got the anwser by writting three groups and kep adding one till I got 21. The answer is 7.

# data[].attributes.body
The answer is 7

# data[].attributes.body
there are 7 pencil's in each pencil holder.

# data[].attributes.body
Y ou do three groups of seven.

# data[].attributes.body
21