A.I. Explanation:

Option 1: "To serve as monuments to the architectural skills of the ancient Egyptians"

Explanation: This option suggests that the pyramids were built primarily to showcase architectural skills. However, the text emphasizes that the main purpose was to protect the body of an Egyptian king and ensure the soul's immortality, not to serve as monuments. Therefore, this option misrepresents the primary intent.

Option 2: "To protect the body of an Egyptian king and ensure his soul could live forever"

Explanation: This option accurately reflects the main idea of the text, which states that each pyramid was built to protect the body of an Egyptian king so that the soul could live forever. This is supported by the text's explanation of mummification and the burial practices of the Egyptians, making it the correct answer.

Option 3: "To display the wealth and power of the Egyptian civilisation to neighbouring cultures"

Explanation: While the pyramids may have symbolized wealth and power, the text does not mention this as a purpose for their construction. Instead, it focuses on the religious and protective aspects related to the kings' afterlife, making this option incorrect.

Option 4: "To act as tourist attractions for future generations"

Explanation: This option implies that the pyramids were built for future tourism, which is not supported by the text. The primary purpose discussed is related to the burial and preservation of kings, not for attracting tourists, thus rendering this option incorrect.