The correct answer should be stasis
Transition and change are synonyms and so are immobility and stasis.
Answer: D. Informing the student body about the school's new recycling program.
A website would be particularly effective in this case because the audience that needs to be reached is a large one (the whole student body). Moreover, the topic is one which could be significantly complex. Students will probably use it as reference, so they will need to check it several times. A website would make it easily accessible and always available.
The correct answer is to B. De-emphasize the subject.
Very often the subject can be completely omitted.
Burglars committed the crime
The crime was committed (by the burglars).
In the passive version, the subject is irrelevant.
A)Jim felt important enough to place his full name on the mailbox when he enjoyed a higher income.