Multiple choice general knowledge science & technology SIM Subscribe Identity Modum Subscriber Iden Modum Subscriber Identity Modum Subscriber Identity Module Reveal answer Fill a bubble to check yourself D Correct answer Explanation SIM stands for Subscriber Identity Module, a smart card that stores a mobile subscriber's identity and information. Option D is correct. Options A, B, and C are incorrect - 'Subscribe' and 'Modum' are misspelled or wrong.