Because the father helped Maria to pay for her mothers medical expenses. Even though Maria's mother passed away, he still supported her during her mourning. He also paid for Maria's mother's funeral expenses and offering Maria work.
The answer is D. metaphorical because Josh is being compared to an unlike thing (a bulldozer) without 'like' or 'as.' (A simile is the same thing except it is the comparing of two unlike things using 'like' or 'as'.)
