Which one of the following is true of seed plants but not true of seedless plants?

• A. The sporophyte is dependent on the gametophyte.
• B. The sporophyte is large, and the gametophyte is small and independent.
• C. The spore is the main means of dispersing the offspring.
• D. A film of water is necessary for sperm to come in contact with eggs.
• E. The gametophyte is reduced and dependent on the sporophyte.