Given the code below:

$1$ def teststr$($greeting$)$:

$2$ for $i$ in greeting:

$3$ data$=$i

$4$ print$($data$)$

$5$ message$=$"hello"

$6$ print$($teststr$($message$))$

a$.$ What is the actual parameter value?

b$.$ What does this function return?

c$.$ What are the possible values of $i,$ during fur

d$.$ What is the value of data in line $4?$

e$.$ What will be printed in line $6?$

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