Final answer:
The scenario suggests the presence of many dividing immature lymphocytes and active macrophages, which matches choice C) Presence of macrophages. Plasma cells are scarce and mitotic figures are not mentioned as being scarce.
Step-by-step explanation:
The scenario described in the question indicates a predominance of lymphoblasts with common mitotic figures, meaning there are many immature lymphocytes that are actively dividing. Lymphoblasts are indicative of a high turnover of cells, such as in a response to an infection or in certain blood disorders like leukemia. Macrophages are present in the scenario described, suggesting that phagocytic activity is occurring, possibly as part of an immune response. This would match choice C) Presence of macrophages. Plasma cells are scarce, meaning there is not an increased number of these cells; plasma cells are the differentiated form of B cells responsible for antibody production. Since there is a scarcity of mitotic figures, option D is also incorrect. Additionally, there is not a predominance of small mature lymphocytes, so option B is incorrect. Given the details provided, the answer reflects an active, possibly pathological condition, rather than a state of increased plasma cell number or predominance of mature lymphocytes.