Final answer:
The Mangekyou Sharingan is possessed by 2 Uchiha members: Itachi Uchiha and Sasuke Uchiha.
Step-by-step explanation:
The correct answer is B) 2.
In the Naruto series, the Mangekyou Sharingan is a rare and powerful eye technique possessed by members of the Uchiha clan. It grants the user enhanced visual abilities and the ability to use unique and powerful jutsus. Only a few Uchiha members have unlocked the Mangekyou Sharingan.
The two Uchiha members who have been shown to possess the Mangekyou Sharingan are Itachi Uchiha and Sasuke Uchiha. Each Mangekyou Sharingan is unique and has its own abilities, such as Itachi's Tsukuyomi and Amaterasu and Sasuke's Amaterasu and Susanoo.