What type of electrical connection allows current to flow through components sequentially?

The correct choice, which is a series connection, allows current to flow through components sequentially. In a series circuit, all components are connected end-to-end, forming a single path for current to travel. This means that the same amount of current flows through each component in the circuit, and if one component fails or is disconnected, the entire circuit is disrupted, stopping the flow of current.

This arrangement is particularly useful in applications where it is important to have a specific sequence of operations, such as in string lights or certain types of sensors. The voltage across the whole circuit is the sum of the voltages across each component, which can also affect how each component operates. Understanding this nature of series connections is crucial in both designing and analyzing electrical circuits because it directly impacts how the overall circuit behaves.