Business$-$level strategy is

a$.$ the methods by which strategies are operationalized or executed within the organization.

b$.$ the set of decisions an organization makes about how it will distribute its resources.

c$.$ the set of strategic alternatives that helps an organization focus its competitive efforts for each industry or market in targeted and focused manner.

d$.$ the set of strategic alternatives from which an organization chooses as it manages its operations simultaneously across several industries and several markets.

e$.$ the set of processes involved in creating or determining an organization's strategies.