Select the segment of the sentence which has an Adjective clause:

The correct answer is Option (4) → where the car had met with an accident

Adjective clause:

• An adjective clause describes a noun, just as an adjective does.
• It begins with a relative word:
  • who, whom, whose, which, that;
  • where, when, why after a noun of place, time or reason (the spot where, the day when).
• This sentence: where the car had met with an accident describes the noun the spot; it tells which spot.
  Example: This is the house where I was born.

Why the Other Options are Incorrect?

Option 1: I had just gone a short distance — Incorrect. This is the main clause; it does not describe any noun.

Option 2: when I came on the tracks and — Incorrect. "when I came on the tracks" is an adverb clause of time; it tells when the action of the main verb happened and follows no noun.

Option 3: had no difficulty in finding the spot — Incorrect. This is the second predicate of the main clause, joined by "and"; it contains the noun "the spot" but no clause describing it.

Contrast: an adjective clause comes after a noun and tells which one (the spot where ...); an adverb clause tells when the action of the verb happens (when I came on the tracks).