Table: how_its_made_episodes
Columns: series_ep
episode
netflix
segment_a
segment_b
segment_c
segment_d

Question: What was segment C when segment D was fluorescent tubes? 
SQL: SELECT "segment_c" FROM how_its_made_episodes WHERE "segment_d" = 'Fluorescent Tubes'

Question: What was segment C when segment B was package printing? 
SQL: SELECT "segment_c" FROM how_its_made_episodes WHERE "segment_b" = 'Package printing'

Question: What was segment A when segment B was snowboards? 
SQL: SELECT "segment_a" FROM how_its_made_episodes WHERE "segment_b" = 'Snowboards'

Question: What was segment D when segment B was jeans? 
SQL: SELECT "segment_d" FROM how_its_made_episodes WHERE "segment_b" = 'Jeans'

Question: In what episode was segment D ned Can Corn? 
SQL: SELECT MAX("episode") FROM how_its_made_episodes WHERE "segment_d" = 'ned Can Corn'