Topic: Group verb,

Best Answer Explained in Below-:

The phrase "There is none to --- the orphan" conveys the idea of someone taking responsibility for the well-being and care of the orphan. Among the provided options, "look after" is the most suitable choice because it directly indicates the act of caring for someone or ensuring their needs are met.

Let's examine the other options to clarify why they are less appropriate:

- **B) look at**: This phrase implies merely observing someone without any connotation of care or responsibility. It does not fit the context of caring for an orphan.

- **C) look for**: This suggests searching for someone or something, which again does not align with the concept of providing care or support to an orphan.

- **D) look upon**: This phrase implies a perspective or regard towards someone but doesn't inherently convey action or care.

In contrast, "look after" is specifically used to denote taking care of someone, which is crucial in the context of an orphan who requires care and support. Therefore, the correct answer is A) look after, as it accurately captures the sentiment of the statement regarding the need for nurturing the orphan.