HELP PLZ What is the most straightforward way to determine into which category a pattern falls?

a
Measuring the angles of a central star
b
Trying to imagine the type of grid that might lie underneath the pattern
c
Counting the 'petals' or rays around a central star
d
Counting how many stars feature in a composition

rosevelt. 1973. "slaves everywhere"

answer: ensure protection from communism

explanation:

the north atlantic treaty was largely dormant until the korean war initiated the establishment of nato to implement it, by means of an integrated military structure: this included the formation of supreme headquarters allied powers europe in 1951, which adopted the western union's military structures and plans.