What Is the Difference Between a Malignant Lymphoid Aggregate and a Benign

What is the difference between a malignant lymphoid aggregate and a benign lymphoid aggregate?

A) Benign aggregates are well defined, whereas malignant aggregates are ill-defined.
B) Malignant aggregates are composed of single polymorphic cells, whereas benign aggregates are composed of multiple monomorphic cells.
C) Benign aggregates are clonal, whereas malignant aggregates are polyclonal.
D) Malignant aggregates have a normal phenotype and benign have an aberrant phenotype.