Which of the Following Is True of the Relationship Between

Which of the following is true of the relationship between sunspots and certain cyclic weather effects?

A) the connection between sunspot cycles and weather is well established.
B) the correlation between the two phenomena is interesting,but a direct link remains unconfirmed.
C) the existence of a sunspot cycle has yet to be confirmed.
D) there is no record of sunspot activity prior to this century.
E) the connection between sunspot cycles and tectonic activity is documented.