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

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

Which of the following world and national events led to a new view of people with disabilities in the us:     a.  world war i and ii veterans with disabilities returned home after the wars.b.  john f. kennedy was elected president and had a sister with a disability.c.  the civil rights and feminist movements.d.  all of the above.