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The best way to combine sentences 7 & 8
What is
A) In order to make the skateboard a safer sport, Richard Stevenson of Los Angeles created the kicktail, an upward curve at the back of the board which made it more maneuverable.
B) In order to make the skateboard a safer sport, Richard Stevenson of Los Angeles created the kicktail.
C) In order to make the skateboard a safer sport Richard Stevenson of Los Angeles created the kicktail, an upward curve at the back of the board which made it more maneuverable.