Answer :
Final answer:
Apple refused to create a back-door software solution to unlock the mobile phone due to concerns over personal privacy and national security.
Explanation:
Apple refused to create a back-door software solution to unlock the mobile phone because of concerns regarding personal privacy and national security. Apple believed that creating such a back-door would compromise the privacy of its users and open the door for potential abuse by hackers and government surveillance. Additionally, Apple argued that complying with such a request would set a dangerous precedent and undermine the security of all users' data.