Correct answer choice is:
FORCE.
Step-by-step explanation:
Chandragupta Maurya employed a couple of approaches incursion and matrimony support. Primarily, he raised an army to capture lands and create harmony with them by espousing the royalty of captured lands. Thus by before-mentioned techniques, he accomplished to consolidate greater sections of northern India, modern-day Pakistan, and Afghanistan, therefore, growing the leading Indian ruler to arrange accordingly.