Although the traditional model of software acquisition still accounts for more software acquisition, a new model, called is changing the picture dramatically.
a. hardware as a
b. software as a service
c. processing as a product
d. storage as a solution

b.

Explanation:

Although the traditional model of software acquisition still accounts for more software acquisition, a new model, called b. Software as a Service, is changing the picture dramatically.

Software as a Service is new software model in which A software is a third party provider hosts application and makes them available to general public over internet that distribution of it.

Its example include  BigCommerce, Google Apps, Salesforce, Dropbox, MailChimp, ZenDesk, DocuSign, Slack, Hubspot

resonant frequency