Concept:The AVERAGE function in Excel calculates the mean of selected numeric values by adding them and dividing by their count.
Explanation:ENEM GRACE appears in row 4 of the worksheet.
Her subject scores are recorded from column B to column F.
Therefore, the correct cell range containing all her marks is B4:F4.
The formula to find her average score should be entered as =AVERAGE(B4:F4).
Option A gives this exact range.
The other options include incorrect row numbers or wrongly include the Name column.
Thus, Option A correctly calculates the average score for ENEM GRACE.
Answer:Option A: =AVERAGE(B4:F4)