The correct answer is D. it uses imperfect coordinating structure.
Parallelism refers to the use of the same word form throughout a particular sentence. So, in the example above, in order to achieve parallelism, we would need to change the word 'vacuuming' into 'to vacuum,' in order to keep the consistency with the other two verbs: 'to dust' and '(to) straighten up.'
Hey, i’m gi ! if i had to decipher this for myself, i’d say that it means ,,,
“we cannot always chose where we come from or where we start, but we can always chose where we chose to go with our lives”
In the revising stage you should edit and reread the memo to make sure that thats what you wanna say