Consider the following statements for a 4- cylinder inline engine whose cranks are arranged at regular intervals of 90°:
1. There are 8 possible firing orders fort the engine.
2. Primary force will remain unbalanced for some firing orders.
Which of the statements given above is/are correct?
(a) 1 only (b) 2 only
(c) Both 1 and 2 (d) Neither 1 nor 2