The correct option is D Diary entry
The correct format is Option B. 'Helping an old couple cross the road' may have given an individual immense pleasure and satisfaction and he can account his emotion through his diary entry. Option A is incorrect as a poster generally has images or quotes to depict a thought or feeling. Option C is incorrect as an advertisement is a notice or announcement in a public medium promoting a product, service, or event or publicizing a job vacancy. Option D is incorrect as a journal is a newspaper or magazine that deals with a particular subject or professional activity.