The following sentence has been divided into four segments. One of them contains an error. Select the segment that contains the error from the given options.
Last night I dreamed that / I am looking for the/ abominable snowman high / up in the Himalayas.

The correct option containing the error is: I am looking for the.

Explanation:
The main clause of the sentence ("Last night I dreamed that...") is set in the past tense. According to the rule of sequence of tenses in English grammar, when the main verb of a sentence is in the past tense, the verb in the subordinate clause should also be in a corresponding past tense.

In this sentence, the present continuous form "am looking" is incorrectly used after the past tense main verb "dreamed". It should be replaced with the past continuous form "was looking".

Correct Sentence:
Last night I dreamed that I was looking for the abominable snowman high up in the Himalayas.