To solve this problem, we need to analyze the given statements about springwood and identify the correct set of statements. Let's evaluate each statement:$\newline \bullet$(a) It is also called the earlywood:$\newline$ - Springwood is indeed referred to as earlywood because it is formed during the spring season when growth is rapid.$\newline$ - This statement is correct.$\newline \bullet$(b) In spring season, cambium produces xylem elements with narrow vessels:$\newline$ - In the spring season, the cambium is active and produces xylem elements with larger vessels to facilitate efficient water transport.$\newline$