<u>Answer:</u>
The correct answer option is 'participial phrase'.
<u>Explanation:</u>
We are given the following sentence:
'The old man sat at the window,<em> remembering the days when he would have gone outdoors</em>'.
Here, the italicized words are an example of participial phrase.
A phrase which looks like a verb but actually functions as an adjective while modifying a noun in the same sentence is called a participial phrase.
So in this sentence, 'remembering' is the present participle and 'remembering the days' is the participial phrase. The participial phrase modifies 'he'.
Well, he was born in Ulm Germany on March 14, 1879, his research became famous in 1905 because of his laws of Physics, he died April 18, 1955, at the age of 76. He left Germany when Hitler became Dictator 1933. HE is the reason for the Manhatten project, he wanted to use nuclear fission as a weapon which highlighted the danger of nuclear weapons he became and American citizen in 1940. He had written more than 300 research papers along with 150 non-scientific works.
A. he gazed at the bright blue sky and the trees filled with lush green foliage. How could anyone spend time looking at a screen when he could look at this?