Select the most appropriate option to fill in blank no. 5.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. required.
"Required" fits the context because the sentence discusses an assumption about full-day kindergarten being a standard part of the public education system, implying it is something expected or necessary.
"Disapproved" means to express disagreement or rejection, which doesn't fit the context.
"Ceaseless" means continuous or without stopping, which is unrelated to the topic.
"Inessential" means not necessary, which contradicts the idea of something being a standard part of the education system.