Explanation:

A programming language is a formal language that provides a set of specific rules (syntax) and keywords (words) that allow a programmer to express the logical steps of an algorithm in a structured and unambiguous way. This enables the translation of human-understandable logic into machine-executable code. Option (a) programming language is the correct answer. Option (b) programming structure refers to organizational patterns within a program. Option (c) syntax refers only to the rules, not the words. Option (d) logic chart (flowchart) is a graphical representation, not a textual container of rules and words.