Please solve the following question and include explanation

Problem 2. Three identical point charges +Q are ar- ranged in a line as shown in Fig. 1. Points A, B, and C are along a parallel line. You do not know the lengths L and d. The three charges produce an electric field. Without knowledge of L and d, what can you infer about the electric field at points A, B, and C? O+ A d/2 B d/2 Q+ IC Q+ Fig. 1. Charge distribution for Problem 2. (a) Both the magnitude and direction of the field are the same at points A, B, and C. (b) The magnitude of the field is the same at points A, B, and C but the directions are different. (c) The exact direction of the field can be predicted only at point C. (d) The exact direction of the field can be predicted only at points A and C. (e) The exact direction of the field cannot be predicted at any of the three points