Answer the question from the attachment.

the battle of the somme started on july 1st 1916. it lasted until november 1916. for many people, the battle of the somme was the battle that symbolized the horrors of warfare in world war 1.   the germans didn't use it on a large scale till 1915.

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.