Check each option by adding the parts.<br><br>
&bull; A: 6000 + 40 + 5 = 6045. Not equal.<br>
&bull; B: 5405 + 1000 = 6405. Equal!<br>
&bull; C: 6040 + 5 = 6045. Not equal.<br>
&bull; D: 4000 + 600 + 5 = 4605. Not equal.<br><br>
Final Answer: B: 5405 + 1000