Answer is E
If someone has to air longer programme then they must be sure that people will watch it instead of either switching channel after few minutes or keeping TV while doing something else. If either of these happens then its clear tat people are not interested after few minutes.So assumption has to be that people will not switch channel after few minute and also will not just keep the TV ON while doing something else.
Kudos please, if it helped.
If someone has to air longer programme then they must be sure that people will watch it instead of either switching channel after few minutes or keeping TV while doing something else. If either of these happens then its clear tat people are not interested after few minutes.So assumption has to be that people will not switch channel after few minute and also will not just keep the TV ON while doing something else.
Kudos please, if it helped.
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