The correct option is the last one.
William Wordsworth was a romantic poet that made emphasis on the relationship between man and nature. In his poem "Daffodils" also known for its first line "I Wandered Lonely as a Cloud" he made clear that IT IS POSSIBLE TO BE HAPPY IF YOU CAN REMEMBER HAPPY TIMES.
In "Daffodils", Wordsworth made use of many figures of poetic language such as simile "lonely as a cloud", visual images "golden daffodils" or "beside the lake" to convey the idea of unity between man and nature. By remembering that landscape, he was happy.
