Final answer:
The author unfolds the idea that designing the Apollo 11 patch was a difficult task through various ways such as emphasizing its significance, describing the messages it intended to communicate, and highlighting the complexity of the design.
Step-by-step explanation:
The correct answer to the question is option B. The author reasons that the patch was an important part of the lunar landing.
Throughout the passage, the author emphasizes the significance of the Apollo 11 patch in multiple ways. By mentioning that the patch was designed by NASA graphic artist Donald K. Slayton and that it served as a symbol of the Apollo program, the author demonstrates the importance and difficulty of creating a design that would accurately represent and commemorate the mission.
Furthermore, the author describes how the design was intended to communicate multiple messages, such as the idea of humans exploring space and advancing scientific knowledge. This adds to the complexity of the task and highlights the difficulty faced by the designers in conveying these messages through a single graphic design.