The correct answer is "जयंत, वाटिका, बच्चे, माताजी". This is because all the other options do not form a meaningful group of nouns. "बच्चा" means child, "नील" means blue, and "पढ़ना" means to read, while "जयंत" means victory, "वाटिका" means garden, "बच्चे" means children, and "माताजी" means mother. Only the nouns in the correct answer form a coherent group.