Can we draw the following hypothesis from the context (see options)?

Context:

Major General John Craig Lawrence {'1': ", '2': ", '3': ", '4': "} (born 18 October 1963), also known as Craig Lawrence or J. C. Lawrence, is a retired British Army officer whose last appointment was as the Director of Joint Warfare in the Joint Forces Command. He left the army on 6 June 2016 and is now a writer.

Hypothesis: Major General John Craig Lawrence makes more money writing than when in the army.
Options are: 1). Yes 2). It's impossible to say 3). No
2).