The correct option is A 288
From the key, we know that each picture in the pictograph represents 12 pens.
Thus,
Number of pens sold on Monday:
5 × 12 = 60
Number of pens sold on Tuesday:
2 × 12 = 24
Number of pens sold on Wednesday:
8 × 12 = 96
Number of pens sold on Thursday:
4 × 12 = 48
Number of pens sold on Friday:
5 × 12 = 60
Hence, the total number of pens sold : 60 + 24 + 96 + 48 + 60 = 288