Accounting help. please explain.

John prepared his draft year end accounts, but did not adjust these for a prepayment of $1,500 and an accrual of $400.

How will John's profit and net assets be affected by including the prepayment and the accrual?

Net profit will reduce by $1,900

Net assets will reduce by $1,900

Net profit will increase by $1,100

Net assets will reduce by $1,100

Net profit will increase by $1,100

Net assets will increase by $1,100

Net profit will reduce by $1,900

Net assets will increase by $1,900