A Small Startup Company Has Just Received a Round of Funding

A small startup company has just received a round of funding in order to provide the capacity that is required to deliver their smartphone app to a larger number of devices. They have decided to use a public cloud rather than build their own data center, but want to manage as much of the infrastructure as possible while realizing the savings on capital expenditures from the purchase of hardware. Which of the following service models will give them the most control over the security of the platform they want to develop?

A) SaaS
B) PaaS
C) IaaS
D) DBaaS