4. Franklin invented this when he was a postmaster.
A. Franklin stove
B. almanac
C. bifocals
D. odometer

  A, The Franklin stove invented in 1742. The Franklin stove is a metal-lined fireplace named after Benjamin Franklin. It had a hollow baffle near the rear (to transfer more heat from the fire to a room's air) and relied on an "inverted siphon" to draw the fire's hot fumes around the baffle.

Explanation: Not D

Although Franklin did not invent it, he designed an odometer and attached it to the front wheel of the letter carriage, the odometer measured the number of revolutions of the wheel.

b. british workers

answer; i believe the correct answer is (the willamete valley);