Collaboration is essential to success of the team

Step 1: Analyze the question The underlined word is essential, as used in "Collaboration is essential to the success of the team." We need the option closest in meaning to it.

Step 2: Explain the concept "Essential" is an adjective meaning absolutely necessary, something you cannot do without. Its closest synonyms are indispensable, vital, crucial and necessary.

Step 3: Test each option

• A. desired means wanted. Something can be wanted without being necessary, so this is not a match.
• B. indispensable (spelt "indespensable" in the question) means that cannot be done without. This is a direct synonym of essential.
• C. effective means producing a good result. It describes how well something works, not whether it is needed.
• D. appropriate (spelt "appropraite" in the question) means suitable or fitting. It does not carry the idea of necessity.

Step 4: Answer Collaboration is essential (necessary, cannot be done without) to the team's success, so the best match is B. indispensable.

Tip: In synonym questions, replace the underlined word with each option and see which keeps the sentence's meaning. "Collaboration is indispensable to the success of the team" says the same thing as the original. Watch out for options that sound positive (like effective) but don't mean the same thing. Also, in the exam, the correct spelling is indispensable.