What will the following code display in the lblSum control?

Dim intSum As Integer
Dim intY As Integer
Do While intY < 3
For intX As Integer = 1 To 4
intSum = intSum + intX
Next intX
intY = intY + 1
Loop
lblSum.Text = Convert.ToString(intSum)

A. 5

B. 8

C. 15

D. 30

Answer: Option D