Answer:
EOF stands for End Of File
Google explains it well: EOF is a condition in a computer operating system where no more data can be read from a data source. The data source is usually called a file or stream.
Answer:
B. Responsive display ads
E. Uploaded ad (Image & AMPHTML).
Explanation:
If what you want to achieve is greater control and greater efficiency and scale while you place your ad? Then the two ad format to achieve that are, responsive display ad and uploaded ad.
The uploaded ad will guarantee you have greater control while the responsive display ad gives you greater scale and efficiency.
Well we just benefit from it like it just helps as I guess