Correct Answer: STRICT

Solution : Given:
ELECTRICIANS

Let's compare all the option words with the given word.
First option: STRICT; Two Ts are not present in the word ELECTRICIANS. Therefore, all the letters of STRICT are not present in the word ELECTRICIANS.
Second option: TRAINS; All the letters of TRAINS are present in the word ELECTRICIANS.
Third option: ELECTS; All the letters of ELECTS are present in the word ELECTRICIANS.
Fourth option: RACES; All the letters of RACES are present in the word ELECTRICIANS.

Only STRICT cannot be formed using the letters of ELECTRICIANS. Hence, the first option is correct.