(2 3) 4 has 4 sets of ∙ ∙ four sets of blocks with 2 2 (3 4) has two sets of blocks with 3 rows and 4 columns in each ∙ ∙ rows and 3 set. columns in 2 sets of these each set. B)
(2 ∙ 3) ∙ 4 has four sets of blocks with 2 rows and 3 columns in each set. 4 sets of 2 ∙ (3 ∙ 4) has two sets of blocks with 3 rows and 4 columns in each set. 2 sets of these B)