The angle of elevation of the top of a vertical tower from a point A on the ground is 60^o. From a point B, 2 units of distance further away from the foot of the tower, the angle of elevation of the tower is 45^o. Find the distance of A from the foot of the tower

• A.3 + \(\sqrt{3}\)
• B.5 + \(\sqrt{3}\)
• C.3 - \(\sqrt{3}\)
• D.1
• E.\(\sqrt{3}\) - 1