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Answer the following statements true (T) or false (F)

1. Our primary counting system is based on binary digits to represent numbers. 2. The decimal system has a radix of 100. 3. Negative powers of 10 are used to represent the positions of the numbers for decimal fractions. 4. A number with both an integer and fractional part has digits raised to both positive and negative powers of 10. 5. In any number, the rightmost digit is referred to as the most significant digit.

What output is produced by the following code fragment?

``` String m1, m2, m3; m1 = "Quest for the Holy Grail"; m2 = m1.toLowerCase(); m3 = m1 + " " + m2; System.out.println(m3.replace('h', 'z')); ```