In the following passage some of the words have been deleted. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

Comprehension:
According to the Integrated Taxonomic Information System (ITIS) there are more than 60 (1)______ of rat, which means they come in all sizes. They are (2)_____ 5 inches (12 centimeters), or longer, according to Encyclopedia Britannica. The largest species is the Bosavi woolly rat, which was (3)_____ in 2009 in the rainforest of Papua New Guinea (and doesn't have a scientific name yet). It is (4)______ the size of a cat — 32.2 inches (82 cm) from nose to tail and (5)______ around 3.3 lbs. (1.5 kilograms), according to CNN.

Select the most appropriate option to fill in blank number 5.