Suppose a farmer in Nebraska incurs $8,700 in crop damage from sparks that are created when a local railroad company sends trains along tracks bordering the farm. This damage can be best described as a:

Refer to Figure 7-2. The efficient equilibrium quantity is ________ thousand vaccinations

A) 200 B) 400 C) 600 D) > 600

If the exchange rate changes from $1.52 = £1.00 to $1.65 = £1.00, then relative to each other,

A) both the dollar and the British pound have appreciated. B) both the dollar and the British pound have depreciated. C) the dollar has appreciated and the British pound has depreciated. D) the dollar has depreciated and the British pound has appreciated.