Q. The Diagonal Relationship can be Observed by –
A. Elements of 3rd period.
B. Elements of 1st period.
C. Elements of 2nd period.
D. Both a and c.
Answer: Both a and c.
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A. Elements of 3rd period.
B. Elements of 1st period.
C. Elements of 2nd period.
D. Both a and c.
Answer: Both a and c.