What is the relationship between id and ic?
what is the relationship between and ?
the currents are not equal in magnitude, the algebraic signs of the current values are opposite.
the currents are equal in magnitude, the algebraic signs of the current values are the same.
the currents are equal in magnitude, the algebraic signs of the current values are opposite.
the currents are not equal in magnitude, the algebraic signs of the current values are the same.

The question has a diagram attached to it which I have done in the explanation.

The answer = The currents are equal in magnitude, the algebraic signs of the current values are opposite.

Explanation:

What is applied here is the Kirchoff's junction role or kirchoff's current law which states that the algebraic sum of the current entering any junction must be equal to the algebraic  sum of the current leaving the junction. this is what is applied in the diagram.

The attachment shows the explanation

im guessing the west of station b