Answer:
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Answer:option D set challenging and specific goals that are not too difficult or too easy to encourage persistence and concentration during lessons
Explanation: student most times love it when they are push beyond their limits and some teaching strategies help motivate student be more, do more and excel acedemically teachers usually tries to find the best way to reach to this student and this method of giving student challenging questions that are not too difficult will also help motivate the student and help the teach to reach to the student by recognizing where they are falling short and helping them bounce out of it.
Asbestos is a set of six naturally occurring silicate minerals, which all have in common their eponymous asbestiform habit: i.e. long (roughly 1:20 aspect ratio), thin fibrous crystals, with each visible fiber composed of millions of microscopic "fibrils" that can be released by abrasion and other processes.They are commonly known by their colors, as blue asbestos, brown asbestos, white asbestos, and green asbestos.