HSK C4
Correct

统

/ tǒng / 
Strokes

Definition

to gather/to unite/to unify/whole

Example

As a Verb
put the threads of silk in order
As a Verb
gather into one; unite
As a Verb
administer; control; command
As a Noun
continuum of interrelated things; interconnected system
As a Noun
series
As an Adverb
all; altogether; entirely; wholly