Assuming the bolded words are: <em>"for strong bones and teeth"</em> and that you had to choose between:
- <em>noun phrase</em>
- <em>adverb phrase</em>
- <em>verb phrase</em>
- <em>adjective phrase</em>
It is an adjective phrase (4).
An adjective phrase is a group of words complementing, specifying, or modifying a 'head' adjective in the sentence. It is called an adjective (or adjectival) phrase because the whole group of words functions as an adjective, which means it provides information about a noun.
Here, the adjective phrase "for strong bones and teeth" is specifying the head adjective "essential." It is functioning as an adjective for the noun "calcium" by giving us information about it.
Incomplete question. However, I assumed you are referring to the article <em>"An Inspector Calls and J B Priestley’s political journey" </em>by Alison Cullingford.
<u>Explanation:</u>
In that article the five words that Cullingford uses to describe the ‘golden age' were:
- freedom,
- plenty,
- hospitality,
- conviviality,
- generosity.
He uses such words in other to highlight the contrasts between past experiences and the present one in which Bradford found himself.
Jarvis likes jazz and often attends jazz concerts.