Answer: B.
The balance starts at $1200. On July 19th, there's an outgoing transfer of $800, so you subtract 800. The remaining balance is 1200-800=$400.
On July 20th, there's an incoming transfer of $1600, so you add that to $400 to get $2000.
On July 23rd, you the account recieves $50 more, so you add that to get $2050.
On July 24th, you have to pay $105, so you subtract that to get $1945.00.
Hope I could help!
