Choose the correct pronoun to replace the underlined noun in the following sentence.

my dog duncan protected andy from the bully.

1.he
2.him
3.who
4.whom

Andy seems to be the most likely to be the noun, if this is so then it should be 2.

there is a sequence and logical steps to give an answer of a trouble.

1) strategy is necessary to develop an project idea.

2) to study and know the environment where you are going to work ( ecosystem).

3)   the materials resources to built the ideas.

4) to give a priority order in the context that you study. in this case human needs.