Final answer:
In a blood sample with 5 times as many monocytes as basophils, and with 60 basophils present, there would be 300 monocytes (60 × 5).
Step-by-step explanation:
The question asks for a calculation based on the given ratio of monocytes to basophils in a sample of white blood cells. Given that there are 60 basophils, and the sample contains 5 times as many monocytes as basophils, the calculation to find the number of monocytes is:
Number of monocytes = Number of basophils × 5
Number of monocytes = 60 × 5 = 300 monocytes
Therefore, the answer to the question is (a) 300 monocytes.