Matrices in the elements

Answer:
Step-by-step explanation:
The numbering convention is presumed to be ...
[tex]a_{row,column}[/tex]
1. There is only one row, and 0 is in the fourth column, so its coordinates are (row, column) = (1, 4). Its designator is [tex]a_{14}[/tex].
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2. The relative values in the answer choices are ...
[tex]a.\ a_{32}=2;a_{21}=4 \quad a_{32}<a_{21} \quad\text{answer}\\\\b.\ a_{32}=6;a_{21}=3 \quad a_{21}<a_{32}\\\\c.\ a_{32}=2;a_{21}=-1 \quad a_{21}<a_{32}\\\\d.\ a_{32}=1;a_{21}=0 \quad a_{21}<a_{32}[/tex]