In each of the following questions, sentences are given with blanks to be filled in with an appropriate word(s). Four alternatives are suggested for each question. Choose the correct alternative out of the four as your answer.
When Wilbur Wright tried to sell his flying machine to the U.S. Government, the officials in charge were _________ .

Options

A. a) highly misunderstood
B. b) grudging sceptical
C. c) grudgingly unhappy
D. d) highly sceptical

Answer

D

Explanation

sceptical (Adj.) : having doubts that a claim or statement is true
grudging (Adj.) : given or done unwillingly, reluctant
Hence, highly sceptical ls the right usage.