In the block <span>letter style, all components of the letter begin flush with the left margin.</span>
Hey there!
The correct answer would be - Option B.
Hope this helps you!
SSD stands for system sequence diagrams. SSd diagrams <span>model the interactions between objects in a single use case and illustrate how the different parts of a </span>system<span> interact with each other </span>
On an SSD, a dashed arrow usually represents an object. SSD <span>depicts the </span>objects<span> and classes involved in the scenario and the </span>sequence<span> of messages exchanged between the </span><span>objects.</span>