Understanding Society User Support

Dear Sir or Madam,

I'm referring to the summarised responses for variables d_solar1, d_solar2 and d_solar3 in wave 4 (https://www.understandingsociety.ac.uk/documentation/mainstage/dataset-documentation/wave/4/datafile/d_hhresp/variable/d_solar1).
The responses are distinguished between "no 4 considered in the past and rejected" and "considered in the past and rejected", whereas the questionnaire offers the "no 4 considered in the past and rejected" option only (https://www.understandingsociety.ac.uk/documentation/mainstage/dataset-documentation/wave/4/questionnaire-module/household_w4#household_w4.solar1).

Can you kindly advise what the difference between "no 4 considered in the past and rejected" and "considered in the past and rejected" is? Could it be that "no 4 considered in the past and rejected" should read "no"?

Thank you for the clarification.

Best regards
Ante