I'm pretty sure the answer is D :)
"Nasser's decision threatened British and French stock holdings in the Company and, as the Canal afforded Western countries access to Middle Eastern oil, also threatened to cut off Europe's oil supply." according to an article.
her is this from google
"A system of temporary reference points established in the field allows users to move freely within the study area without losing the geo-referencing. It allows the user to perform the mapping of trees, deadwood, transects, repeated measurements and data verification."
The tax to $2.99 would be the extra 1 cent you would have to pay so that it would become $3.00. Additional tax may be added like 6 cent or something but that only depends on the store or place you go to.