The Blood Pressure of Patients Discharged in June 2019 with a Diagnosis

The blood pressure of patients discharged in June 2019 with a diagnosis of hypertension was reviewed. The 36 samples are below. The diastolic pressures (in mm Hg) were as follows:
88 98 78 84 77 81 90 82 75 72 100 92
85 92 84 77 82 92 87 74 80 95 77 90
87 77 80 83 86 80 88 90 79 82 93 88
What is the mode?

A) 77
B) 82
C) 84
D) 85