Does "Advertisements produced by political campaigns usually included the statement, "I'm [candidate's name], and I approve this message." contain the correct answer to "How were viewers able to determine who endorsed political campaign ads, they saw in advertisements??"

A: no

Does "During his five years at Lepoglava prison he met Mosa Pijade, who became his ideological mentor." contain the correct answer to "Who became his ideological mentor in prison?"

A: yes

Does "In September 2012, YouTube launched its first app for the iPhone, following the decision to drop YouTube as one of the preloaded apps in the iPhone 5 and iOS 6 operating system." contain the correct answer to "When did youtube launch its first app for the iPhone?"

A:
yes