In general, what is happening to $1)$ the size of firms and $2)$ the geographic scope of input procurement, production, processing, and distribution as one goes from Tiers $4/5$ to Tier $3$ to Tier $2$ to Tier $1?$

Question $25$ options:

a$)$

$1)$ Increase; $2)$ Decrease.

b$)$

$1)$ Decrease; $2)$ Increase.

c$)$

$1)$ Decrease; $2)$ Decrease.

d$)$

$1)$ Increase; $2)$ Increase.