The reason that does not make a case for the value of proposed solution is that "it is effective in solving the problems." As always, the simplest explanation is the usually the best solution. This reasoning is lined with principle of plurality and the principle of parsimony.
Answer:
a.) Simple
Explanation:
Because there's only one sentence and it's a simple sentence. :))
The last one or D. The way that something is transmitted. This is because it says broadcasting. That suggests that something is being sent out to everybody. In this case it just means that it is being announced throughout the school.