1. In my opinion, the best answer is D. <span>"They flash upon that inward eye / Which is the bliss of solitude". The A option also seems to be suitable - but the speaker doesn't specify what kind of wealth is he talking about. In the D option, however, it is clear that the image of the daffodils has stayed with him and brought him everlasting joy, which will resurrect whenever he recalls them (as the following two lines confirm).
2. I think the best option is </span><span>B. The image creates an admiring tone that helps readers understand why the speaker seeks to recall the happiness he felt. The speaker is not baffled or afraid. He is a little bit nostalgic, but nostalgia is not the point here; the point is that he will always keep this image in his heart, as a proof of nature's majesty. He "wondered lonely" when he first saw the daffodils, and he recalls the image whenever he is lonely and pensive - not because it is some distant past that will never come again, but because it is an all-time, universal beauty, which brings him happiness.</span>
