Answer:
In the last two paragraphs of O Pioneers!, it can be inferred that Alexandra Bergson and Carl Linstrum have developed a strong bond and connection over the years. Firstly, the text states that "they were left alone with the white, luminous land and the high, blue sky, and nothing more was said between them." This suggests that Alexandra and Carl are comfortable with each other's silence and can enjoy each other's company without needing to fill the space with words. This kind of unspoken understanding is often indicative of a deep and meaningful relationship.
Secondly, the text also mentions that "Carl's restless spirit had communed with Alexandra's silence." This implies that despite their differences in temperament and personality, Alexandra and Carl have found a way to connect and understand each other on a deeper level. Carl's restless spirit suggests a sense of restlessness or wanderlust, while Alexandra's silence implies a sense of rootedness and stability. The fact that these two seemingly opposing forces can come together and complement each other speaks to the strength of their bond.
Overall, the last two paragraphs of O Pioneers! suggest that Alexandra Bergson and Carl Linstrum share a deep connection and understanding, despite their differences. They have developed a level of comfort with each other's company and are able to communicate on a deeper level, even without words.