aspect co (March/June 2017)

Hello!

This is an extract from the June/March 2017 question:
On 1 April 20X4, Aspect Co decided to focus on its core business and so disposed of a non-core division. The disposal generated a loss of $1·5m which is included within operating expenses.

The question is why do we need to deduct this loss on disposal of non-core division from operating expenses of Aspect Co?

Thank you in advance!