The correct answer is (a). Pebble tools.
Pebble tools are the earliest type of stone tool, and they were used by early humans during the Lower Paleolithic period. Pebble tools are made by chipping away at a river cobble or other stone until it has a sharp edge. They were used for a variety of purposes, such as cutting, scraping, and chopping.
Blade tools are a type of stone tool that is made by flaking a long, thin blade from a core. Blade tools are typically much sharper than pebble tools, and they were used for a variety of purposes, such as cutting, scraping, and piercing.
Microliths are small, sharp stone tools that are made by flaking a blade into even smaller pieces. Microliths were often used as parts of composite tools, such as arrowheads and knives.
Cave paintings are paintings that are made on the walls of caves. Cave paintings are often very beautiful, and they can provide us with a lot of information about the people who made them. However, cave paintings are not associated with the Soanian Culture.
The Soanian Culture is a prehistoric culture that was located in the Punjab region of Pakistan. The Soanian Culture is associated with the Lower Paleolithic period, and it is characterized by the use of pebble tools.