Mary's lease has come to an end. She made several improvements and now she wants to be compensated. Choose the correct statement. O a. A lien over the property is allowed where the lessor has failed to pay the lessee if any type of improvement was done on the property. O b. For necessary improvements she is entitled to whole amount, even if the amount proves to be greater than the expenses incurred by the lessee in effecting these improvements. Oc. With useful improvements, the lessee is entitled to compensation if there was prior consent or can remove the improvements before the lease expires.