Table:
| € millions | 2019 | 2018 | 2017 |
| --- | --- | --- | --- |
| Cost of cloud and software | 138 | 78 | 115 |
| Cost of services | 246 | 142 | 158 |
| Research and development | 429 | 210 | 269 |
| Sales and marketing | 562 | 312 | 442 |
| General and administration | 461 | 88 | 135 |
| Share-based payment expenses | 1,835 | 830 | 1,120 |
| Thereof cash-settled share-based payments | 1,664 | 674 | 963 |
| Thereof equity-settled share-based payments | 171 | 156 | 157 |
Paragraphs:
The operating expense line items in our income statement include the following share-based payment expenses:
Share-Based Payment Expenses by Functional Area
In 2019, we paid €79 million in share-based payments that became fully vested because of terminations due to operational reasons in connection with our restructuring plan. These payments as well as the expense portion initially allocated to future services were classified as share-based payments and not as restructuring expenses.
Question:
In which year was the Cost of cloud and software the largest?
Answer: Because 138>115>78, the answer is: 2019.