The two phrases that are evidence of John Locke's Social Contract Theory are:
b) "That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed."
d) "That whenever any Form of Government becomes destructive of these ends it is the Right of the People to alter or to abolish it."
These phrases reflect Locke's ideas about the purpose of government, the consent of the governed, and the right of the people to change their government when it fails to protect their rights.