Answer:
A) Rational.
Explanation:
We have been given a real number
. We are asked to determine whether our given number is rational or irrational.
We know that an irrational number is a number that cannot be written as fraction.
Upon evaluating our given number, we will get:

We can write 1.1 as fraction as shown below:

Since we can write our given number a fraction, therefore, our given number is a rational number and option A is the correct choice.