Questions are answered in their order of appearance.
Option a
Wage inflation is not a reason that has contributed to
collaborative consumption. With more smartphones and social media,
the consumption of online media has been increased and also
Recession does contribute to collaborative consumption because of a
lack of resources. Hence, option a is correct.
Option c
Consumers will actually see a decrease in search costs because of
the channel extending intermediate. Hence, this statement is
false.
Option c
Even if there are no backlinks to your website Google may still be
able to index your website. Hence, option c is not correct.