The Intel $8088$ is a variant of the Intel $8086$ processor. $8088$ processors have $16-$bit ALU, $16-$bit internal data

Which one of the followings is correct?

The $8088$ processor is considered as $16-$bit processor because of the $16-$bit internal data bus

The $8088$ processor is considered as $16-$bit processor because of the $16-$bit ALU

The $8088$ processor is considered as $8-$bit processor because of the $8-$bit external data bus