Lable the sentence...

I bought Roy new running shoes to wear to the
protest.

a. "to practice" is the best phrase to complete the sentence.

explanation:

during the summer, she likes to practice her soccer skills so that she is ready to play in the fall.

(note that : all the other options "the practicing of", "practice for" and "to do a practice on" are inappropriate as they make the sentence grammatically incorrect.)

i cannot see any of the options                                                                        

n arraignment is not a hearing to determine guilt or innocence. it is usually a criminal defendant's first appearance in court 

misty passage from the question