By saying at no time of the year are thank-you notes more visible than June the writer means___________.
A.thank-you notes can be more easily noticed in the month of June
B.thank-you notes can be displayed to the brides or at graduation and summer parties
C.June is the month full of interaction, yet we don’’t write enough thank-you notes
D.it’’s better to send thank-you notes in the month of June