Which of the following statements are correct with regards to signing applications?a) All applications must be signed. b) No certificate authority is needed. c) When releasing application special debug key that is created by the Android SDK build tools can be used.

Question:Which of the following statements are correct with regards to signing applications?a) All applications must be signed. b) No certificate authority is needed. c) When releasing application special debug key that is created by the Android SDK build tools can be used.

1.a) and b) are true

2.a) and c) are true

3. b) and c) are true

4.all statements are true


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