Which of the series of elements listed below would have nearly same atomic radii?

Which series of elements should have nearly the same atomic radii?

Which series of elements would have nearly the same atomic radii ?

Which of the following sets of elements would have nearly same atomic radii?

Which of the following series of elements have nearly the same atomic radii

Because of lanthnoid contractoin, which of the following pairs of elements have nearly same atomic radii ? (Number in the parentrhesis are atomic numbers)