From the words lettered A to D below each of the following sentences, choose the word or group of words that is nearest in meaning to the underlined word as it is used in the sentence. 

David is not only hardworking but also scrupulous. 

From the words lettered A to D below each of the following sentences, choose the word or group of words that is nearest in meaning to the underlined word as it is used in the sentence. 

We really have to be careful because the situation is rather tricky. 

From the words lettered A to D below each of the following sentences, choose the word or group of words that is nearest in meaning to the underlined word as it is used in the sentence. 

I think that his essay is impeccable. 

From the words lettered A to D below each of the following sentences, choose the word or group of words that is nearest in meaning to the underlined word as it is used in the sentence. 

There has been a marked change in her study habit. 

From the words lettered A to D below each of the following sentences, choose the word or group of words that is nearest in meaning to the underlined word as it is used in the sentence. 

He was directed to write the letter.