In the following passage some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each blank.
The department of post has (1)______ inter-city road transport of parcels from Calcutta to Guwahati, Bhubaneswar and Patna. The inter-city (2)______ of parcels by road (3)______ amid the inability of the railways (4)______ adequate space and the preference given (5)______ the airways to perishable commodities.