To edit an existing relationship, a user will need to right-click on the ________ line

Which of the following is not an error?

a) having a function definition that spans two files b) using a global variable in a file it was not defined in without defining it with the extern modifier c) defining a function prototype without the extern keyword when the definition is in another file d) having global variables in different files with the same name

When searching for a node in a linked list to remove, we use a loop to move a pointer through the list. We want the pointer to stay one node in front of the node we wish to remove because:

A. we have to link the node to remove to the node in front of it B. we have to link the node in front of the node to remove to the node after the node to remove (if there is one) C. if we did not, there would be memory leak for the node in front of the node to remove D. we cannot free the node to remove if the pointer is pointing to it