Examine the following code segment:

int$[][]$ b $=$ new int$[3][]$;

b$[0]=$ new int$[3]$;

b$[1]=$ new int$[1]$;

b$[2]=$ new int$[2]$;

b$[0]$ references a$($n$)\_\_\_\_\_\_\_$ and b$[1][2]$ references a$($n$)\_\_\_\_\_\_\_.$

Group of answer choices

row; integer

integer; row

row; row

integer; integer