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.
Scarcity is not created by war; ___(a)___ is a permanent characteristic of all human ___(b)___and has been faced by the whole human ___(c)___. It springs from the fact that the material resources of the world are ___(d)___ and that our ability to make use of those resources is even more limited ___(e)___ our ignorance.

Q:

Select the most appropriate option to fill in blank No.(a).

• 1
  there
• 2
  these
• 3
  those
• 4
  it