Which of the following situations form legally binding contracts?

A legally binding contract is typically formed when there is an offer, acceptance, and intention to create legal relations. Under FIDIC contracts:

Option B (signing the Contract Agreement) unequivocally forms a binding contract.

Option D (Letter of Acceptance issued after receiving the Contractor’s Letter of Tender) generally forms a binding contract unless otherwise specified, as the Letter of Acceptance is the formal acceptance of the tender.

Option A (Letter of Intent) is not necessarily a binding contract; it often serves as an interim arrangement signaling intent but may lack definitive terms to form a contract.

Option C (conditional Letter of Acceptance) may not form a binding contract unless the conditions are fulfilled.