Answer:
B. 1.125 units.
Explanation:
We have been given a parallelogram and we are asked to find the horizontal height of our given parallelogram.
We will use area formula of parallelogram.

We can find the area of our given parallelogram by taking 1.5 as base and 2.7 as height or we can take 3.6 as base and h as height.
Since areas found by both ways will be same so we can equate areas as:
Let us solve for h by dividing both sides of our equation by 3.6.


Therefore, the height h of parallelogram will be 1.125 units and option B is the correct choice.