Correct Option: B

lazy (Adjective) : lethargic
diligent (Adjective) : showing care/effort in your work/duties
incompetent (Adjective) : not having the skill/ability to do your job/a task as it should be done
extravagant (Adjective) : spending more that what is needed
frugal (Adjective) : using only as much money or food as is necessary ; small, plain and not costing very much ; meagre