For the first statement regarding De Beer v Zimbali Estate Management Association (Pty) Ltd 2007 (N), the most accurate answer is:
A. True
In this case, the court indeed found that the estate agent did not have effective possession due to her limited and intermittent access combined with the fact that she was denied access.
For the second question regarding the description of a thief, the correct match would be:
C. Mala fide unlawful holder
A thief unlawfully possesses someone else's property with the intent to keep it, which identifies them as a mala fide (bad faith) unlawful holder.