Final answer:
The information provided does not contain details about Hamadi's and Aisha's methods, making it impossible to compare their approaches accurately.
Explanation:
a) The information does not specify the methods used by Hamadi and Aisha in detail, so it's unclear if Hamadi's method involves multiplication or if Aisha's method does not.
b) The information does not explicitly state whether Hamadi's and Aisha's methods are equivalent or if they use the same operations.
c) The information does not specify that Aisha's method uses subtraction or that Hamadi's method does not.
d) The information does not mention whether both Hamadi and Aisha use the complement method to calculate the total distance.
Without additional details about Hamadi's and Aisha's methods, it is not possible to accurately determine the correct answer among the given options. If you have specific information about their methods, please provide it for a more accurate analysis.