Why do you think colonial officers needs to boost morale during the fortification od Breed’s hill?

Despite their loss, the inexperienced colonial forces inflicted significant casualties against the enemy, and the battle provided them with an important confidence boost during the Siege of Boston

or to make it easier

Despite their defeat, the inexperienced colonial soldiers were able to inflict large casualties on the British, giving them a boost of confidence throughout the Siege of Boston.

Explanation:

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.

the answer for 3 is b and the answer for 4 is d