Access modifier to an Abstract Class constructor

[Reshma Shanbhag]

Whats the answer to following question.
Question :
Which of the following access modifiers can be supplied for the constructor of an abstract class ?
Options :
a . public
b . protected
c . private
d . default
e . friendly
f . No access modifier

[Karthik Veeramani]

Using public, private, protected, or default access doesnt generate compile error. If u extend that abstract class (or do something that invokes super class constructor), it gives a compile error if the constructor is not reachable (for example, if its private it gives an error).
Thanks
Karthik.

[Reshma Shanbhag]

Thanks for you help Karthik.