IBM discloses information regarding other comprehensive income in the financial statements and in the notes to the financial statements for the year ended Dec. $31,2019($use the $201910-$K$).$ One component of other comprehensive income is $$Unrealized gains$/($losses$)$ arising during the period.$$ Another component is $$Reclassification of $($gains$)/$losses to other $($income$)$ and expense.$$ What do each of these two types of components represent $($i$.$e$.,$ what causes these types of components$)?$