The correct answer is: A. batch processing
Batch processing is a method of processing data in which a series of programs are run together on a computer without human intervention. The data is collected and stored in batches, and then processed at a later time. This method was prevalent prior to the invention of time-sharing, as it was more efficient than having users wait for their programs to be processed one at a time.
Telecommunication is the transmission of information over a distance using electronic signals. This can include telephone, radio, television, and computer networking. Telecommunication was not a prevalent method of computer access prior to the invention of time-sharing, as computers were not widely available and were not connected to networks.
Remote access is the ability to access a computer from a remote location. This can be done using a variety of methods, such as a modem, a virtual private network (VPN), or a web-based application. Remote access was not a prevalent method of computer access prior to the invention of time-sharing, as computers were not widely available and were not connected to networks.
In conclusion, the correct answer is: A. batch processing.