Which of the following means to take the smaller ideas you already have and make a bigger idea out of them?
A. Get
B. Stand out
C. Break down
D. Build up

i would say D. Build up.

Explanation:

this is because it simply means an increase of something over a period or just accumulating something by putting parts or materials together.

1. b

2. a deadly disease

4. at the same time

5. a) true

b) true

c)false?

d)false?

7. para.1 = c

para.2 = d

para.3 = f

para.4= b

para.5= e

para.6 = a