Step 1: The Pradhan Mantri Jan Arogya Yojana (PMJAY) was launched in the year 2018, hence statement (a) is correct.
Step 2: The scheme focuses on providing health benefits using technology-enabled systems, therefore statement (b) is correct.
Step 3: PMJAY provides cashless access to secondary and tertiary healthcare services to beneficiaries, so statement (c) is correct.
Step 4: There is no restriction on family size under PMJAY, hence statement (d) is incorrect.