Quantum Key Distribution (QKD) technology deals with:

Correct option is A

The correct answer is option (a)  Data security.

Quantum Key Distribution (QKD) ensures secure communication by using quantum mechanics to share cryptographic keys, making data transfer highly secure.

Information Booster:- 

• Data distribution: While QKD involves the distribution of keys, its main focus is on securing that distribution against eavesdropping and unauthorized access, rather than general data distribution.
  
• Data laws: This option does not relate to QKD. Data laws pertain to regulations and legal frameworks governing data usage and privacy, which is outside the scope of QKD technology.
  
• Data communication: Although QKD is used in the context of secure communications, its specific purpose is to secure the keys used for encryption rather than being a method of data communication itself.