(Choose 1 answer)
Which of the following XML documents are well-formed?
A. <firstElement>some text goes here <secondElement>another text goes here </secondElement>
</firstElement>
B. <firstElement/>some text goes here <secondElement> another text goes here </secondElement>
C. <firstElement>some text goes here <secondElement> another text goes here </firstElement>
</secondElement>
D. <firstElement>some text goes here <secondElement>another text goes here </firstElement>
