One major motivating factor in Britain's decision to colonize Australia in the late 1700s was "<span>B) Britain's recent loss of its American colonies," since it felt that the heart of its empire was beginning to slip away. </span>
The first sentence although I believe the last one is also correct.
I believe it’s D ! I did some research and D seems like the only logical answer.
There isn't a exact number by they no that is is more the 32,000