Which is the following is a capital expenditure?

Which is the following is a capital expenditure?

The following is a capital expenditure such as extension of building 

Capital expenditures are the funds used to acquire or upgrade a company's fixed assets, such as expenditures towards property, plant, or equipment (PP&E). In accounting, a capital expenditure is added to an asset account, thus increasing the asset's basis (the cost or value of an asset adjusted for tax purposes).