Step 1: Understanding the Word:
The word means "to begin to move more quickly."
Step 2: Analyzing the Spelling:
The word has a double 'c' and a single 'l'. The root is 'celer', meaning swift or fast.
Let's check the options:
(A) Aceelerate - Incorrect double 'e'.
(B) Acelerate - Incorrect, missing the second 'c'.
(C) Accelerate - Correct spelling with 'ac-', 'celerate'.
(D) Acellrate - Incorrect double 'l' and missing 'e' before 'rate'.
Step 3: Final Answer:
The correctly spelt word is Accelerate.