When drive-ins were at the height of their popularity in the late 1950's, some 4,000 existed in the united states, but today there are less than one-quarter that many.
(a) there are less than one-quarter that many
(b) there are fewer than one-quarter as many
(c) there are fewer than one-quarter of that amount
(d) the number is less than one-quarter the amount
(e) it is less than one-quarter of that amount

monitor contract compliance and results of forestry activities to assure adherence to government regulations.  

plan and supervise forestry projects, such as determining the type, number and placement of trees to be planted, managing tree nurseries, thinning forest and monitoring growth of new seedlings.  

establish short- and long-term plans for management of forest lands and forest resources.  

determine methods of cutting and removing timber with minimum waste and environmental damage.  

supervise activities of other forestry workers.

by the way there is no video here.

we need the map to answer the question