I believe the answer is
-A decrease in price leads to a decrease in supply.
Increase since we all need to cooperate
Answer:
The woman in white is wilkie collin's fifth published novel,written in 1859.it considered to be among the first mystery novels and is widely regarded as one of the first (and finest) in the genre of "sensation novels".
D. Great Britain.
Source: My World History Textbook
"Great Britain, which long opposed construction of the canal for fear that it might fall into enemy hands, benefited more than any other nation... Instead of making Egypt powerful and independent, the Suez Canal provided the excuse for a British invasion and occupation of that country."