Area of the region bounded by the curve `y^2=4x`, y-axis and the line `y=3`is
(A) 2 (B) `9/4` (C) `9/3` (D) `9/2`

Explanation

To find the area of the region bounded by the curve \( y^2 = 4x \), the y-axis, and the line \( y = 3 \), we can follow these steps:

### Step 1: Understand the curve and the boundaries
The equation \( y^2 = 4x \) represents a rightward-opening parabola. The line \( y = 3 \) is a horizontal line, and the y-axis is the line \( x = 0 \).

### Step 2: Find the points of intersection
To find the area, we first need to determine the points where the curve intersects the line \( y = 3 \):
\[
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