4.5+3.14159265359 is

rational because it is a terminating decimal.

irrational because it is a repeating decimal.

irrational because it is a non-terminating and non-repeating decimal.

rational because it is a non-terminating and non-repeating decimal.

 The correct option is

(C) irrational because it is a non-terminating and non-repeating decimal.

Step-by-step explanation:  We are to select the correct statement for the following number:

Rational number:  a number is said to be rational if the digits after the decimal are either terminating or repeating.

Irrational number:  a number is said to be irrational if the digits after the decimal are non-terminating and non-repeating.

Given number is

Since the digits after the decimal and neither terminating nor repeating, so the given number is IRRATIONAL.

Thus, the number is irrational because it is a non-terminating and non-repeating decimal.

Option (C) is CORRECT.

what is a pre-existing condition claus?

means if you're already damaged some way when you take out a medical insurance you will not get full compensation for that injury that you already have.