What does the word cranky mean in the text

Can someone me with an english language arts assignment? i need someone who's an expert or good at english language ! i need correct answers only !

If the author's last name is mentioned in the sentence, it does not need to be included in the in-text citation.

Subject: save the whales! dear professor crest, i know you are really busy and everything, but i was hoping that you could spend more time thinking about how to save the whales. it’s up to us to speak up on their behalf. it’s really wrong that some amusement parks use these poor, defenseless animals for recreational purposes. this must be stopped, and you’re the person to do it! ttyl, jules which revisions would make this e-mail more formal? check all that apply. a. removing the contractions b. removing the exclamation points c. removing the salutation d. removing the slang and casual speech e. removing the information about amusement parks