Given, the length of two sides of a triangle is 5 cm and 1.5cm, respectively.
Let sides AB = 5 cm and CA = 1.5 cm
We know that, a closed figure formed by three intersecting lines ( or sides) is called a triangle, if difference of two sides < third side and sum of two sides > third side
∴5−1.5<BC and 5 +1.5 > BC
⇒3.5<BC and 5.5 > BC
Here, we see that options (a) (b) and (c) satisfy the above inequaulity but option (d) does not satisfy the inequality.