Is this an opinion question if it is the answer would be A
if it is a formal question it would be D
<span>A. They are clear, specific and measurable
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If the cell membrane does not function normally it allows abnormal movement of substance in and out of the cell, lets take for example the movement of water of plasma membrane allows water to get in into the cell more than what is needed it might cause the bursting of the cell or if it allows water from the cell to get out and leaves only solute within this will cause shrinking of the cell wherein both conditions are abnormal
