Using complex numbers concepts, it is found that the correct option is:
a=0 and b=5
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- A complex number is written in the format a + bi, in which a is the real part and b is the imaginary part.
- For example, a number given as 2 + 3i, has real part 2 and imaginary part 3, thus it has a = 2 and b = 3.
- The same logic is applied for the number 5i in this problem, which has 0 as real part and 5 as imaginary part, thus the coefficients are [tex]a = 0[/tex] and [tex]b = 5[/tex], which means that the correct option is given by the third one, which is a = 0 and b = 5.
A similar problem is given at https://brainly.com/question/17248401