In the following passage some words have been deleted. Fill in the blanks with the help of the alternative given. Select the most appropriate option for each number.
The Amazon is the world's largest tropical rainforest. It is (1) _____the size of the continent of Australia and covers (2)_____area of nearly 2.8 million square miles. The Amazon rainforest gets its life from the (3)_____Amazon River which runs through the heart (4)_____the region. The rainforest in simply the drained basin for the river and its (5)____. The vast forest consists of four layers, each featuring its own ecosystem and specially adapted plants and animals.
select the most appropriate option to fill in blanks no .4

Options

A. in
B. at
C. of
D. on

Answer

C