Match the systems thinking method$/$tool on the left with examples of that method$/$tool on the right.

List on the left:

$1)$System Dynamics

$2)$Soft Systems and Action Research

$3)$Discovering Patterns

$4)$Habits of Systems Thinkers

List of the right:

a$)$Understand big picture, consider mental models, find unintended consequences

b$)$Attitude$,$ practice, and procedures

c$)$Reference architectures, fault$-$tolerant design, and role$-$based access control

d$)$links$,$ loops and delays