Explain which two elements have the most similar chemical properties ? A) K and Na B) K and Ca C) K and CI D) K and S Answer please !

Sorry i dont understand the question can you rephase it?

Ais stronge

Answerd. may include all of these are many definitions of bases: the  brønsted-lowry definition of acids and bases says that bases are proton acceptors.the arrhenius definition of acids and bases says that bases increase [oh⁻] in solution (thereby producing oh⁻ ions)the lewis definition of acids and bases says that bases donate electron pairs.therefore, the sensible answer is that a base may include all of the described characteristics.

Answerhund's rule;