Choose the correct option which best expresses the same sentence in I…

The correct answer is Option (3) → "I really like this furniture," she said.

Indirect to direct speech:

Change	Indirect	Direct	Why
Tense change	liked	like	The reporting verb “said” is past, so the reported verb was backshifted. In direct speech it returns to the tense the speaker used: liked becomes like.
Pronoun change	she	I	“She” (the speaker) becomes “I”.
Words of nearness (time and place)	the	this	The furniture is before the speaker, so “the” becomes “this”.
Reporting verb	said that	“...,” she said	“Said” stays. “That” is dropped, the words go inside inverted commas, and the adverb keeps its place: “really like”.
Full sentence	She said that she really liked the furniture.	“I really like this furniture,” she said.

Example: He said that he was hungry. → “I am hungry,” he said.

Why the Other Options are Incorrect?

Option 1: "She really liked this furniture," she said. — Incorrect. Inside the inverted commas the speaker must say "I", and the tense must go back to the present "like".

Option 2: "She liked really this furniture," she said. — Incorrect.

• The pronoun and the tense are not changed back.
• "liked really" puts the adverb in the wrong place. "Really" goes before the verb.

Option 4: "I have really liked this furniture," she said. — Incorrect. The present perfect "have liked" is not the tense behind "liked". A present feeling is expressed by the simple present "like".