They have some difficulty _____ all the employees, especially the smaller ones to conform _____ the adopted scale of wages.

They have some difficulty _ all the employees, especially the smaller ones to conform _ the adopted scale of wages.

To getting - with

To get - over

Getting - to

None of these

"Have difficulty" is followed by a gerund (–ing form) → getting.

"Conform to" is the correct phrase (we conform to rules, standards, or scales).

Correct sentence: They have some difficulty getting all the employees, especially the smaller ones, to conform to the adopted scale of wages.