Certainly! Here`s an explanation for the matching of the ancient sites with their corresponding archaeological findings:

A. Lothal - Dockyard: Lothal was an ancient city of the Indus Valley Civilization, located in present-day Gujarat, India. Excavations at Lothal revealed the presence of a well-planned dockyard, which suggests that Lothal was an important center for maritime trade during that time.

B. Kalibangan - Ploughed field: Kalibangan is another ancient site of the Indus Valley Civilization, located in present-day Rajasthan, India. Archaeologists discovered evidence of ploughed fields at Kalibangan, indicating the practice of agriculture in the region.

C. Dholavira - An inscription comprising ten large-sized signs of the Harappan script: Dholavira is one of the largest and most prominent archaeological sites of the Indus Valley Civilization, situated in present-day Gujarat, India. Excavations at Dholavira unearthed an inscription with ten large-sized signs, believed to be part of the Harappan script.

D. Banawali - Terracotta replica of a plough: Banawali is an ancient site associated with the Harappan civilization, located in present-day Haryana, India. Archaeologists discovered a terracotta replica of a plough at Banawali, suggesting the use of ploughing techniques in agricultural practices during that period.

Therefore, the correct matching is:

A-2, B-1, C-4, D-3.