Step 1: Identify the type of sentence.
The given sentence is an exclamatory sentence expressing wonder or curiosity, not a direct question.
Step 2: Apply the correct reporting verb.
For sentences expressing curiosity or surprise, the appropriate reporting verb is “wondered”, not “asked” or “said”.
Step 3: Change tense and time expression.
“will” \(\rightarrow\) “would”
“this time next year” \(\rightarrow\) “that time the following year”
Step 4: Check grammatical correctness of options.
(A) Incorrect use of “should”
(B) “worried” changes the meaning
(C) Correct reporting verb, tense, and time expression ✔
(D) Incorrect structure and verb
Step 5: Final conclusion.
The correct indirect speech is option (C).