The phrase the longest journey begins with a single step means A-it's going to take a long time to get there
B-you may not take the trip you planned to take
C-you don't know where you're going all the time
D-getting started at the task the most important thing​

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.)

if this is referring to star wars, han shot first.

the meaning of the phrase fnch clear means it is understandable and readable.