You are advising a customer with an older model Android smartphone. The customer wants to update to the latest version of Android, but using the update option results in a "No updates available" message. What type of issue is this, and what advice can you provide?
A) This is an issue with update limitations.
B) Android is quite a fragmented market, and customers must depend on the handset vendor to implement OS updates for a particular model.
C) The customer can only check the handset vendor's website or helpline to find out if a version update will ever be supported for that model.