Final answer:
The sentence in question is correct in terms of punctuation, capitalization, and spelling, making 'Correct as is' the appropriate choice. Option A is the correct answer.
Step-by-step explanation:
Reviewing the sentence provided, 'she wandered out into the garden and began to play by herself', we can determine that the punctuation, capitalization, and spelling are correct as is. In this sentence, there are no comma splices, capitalization errors, or spelling mistakes that need correcting.
The sentence already demonstrates proper punctuation by not inserting unnecessary commas, correct capitalization by starting with a lowercase letter after the colon which is following instructions rather than starting a new independent sentence, and correct spelling of all the words used. The absence of errors in the sentence makes 'Correct as is' the suitable choice.