The following elevation shows a two$-$span perimeter floor beam spanning between columns.

The following reinforcement is required for the beam flexural strength:

$-$ Bottom: $4-\backslash$#$8$

$-$ Top at the left and right columns: $6-\backslash$#$5$

$-$ Top at middle column: $8-\backslash$#$6$

A$.$ Determine the bottom bars that are required for integrity reinforcement.

B$.$ Determine the top bars that are required for integrity reinforcement at the left and right columns.

C$.$ Determine the top bars that are required for integrity reinforcement at the middle column.

D$.$ Point at each of the bars on the elevation and indicate the number of bars and size.

E$.$ There are three lap splices shown. Do these need to be Class A or B$?$ Why?