1 . Each sentence has four underlined parts having words or phrases marked a, b, c, d, identify one of the underlined parts that must be changed to make the sentence correct: Rasel designed a form of communication enabling (a) people to convey(b)  and preserve their thoughts to incorporate(c ) a series of dots which were read(d) by the finger tips. 

• A. a
• B. b
• C. c
• D. d

Answer: Option C

Explanation: