1.

1). Directions2). Instructions3). Rules4). Orders

Answer»

The context SPEAKS about a road MAP which has the routes MAPPED out and we can read the 'directions' on it 

'INSTRUCTIONS' could have been right for a document but on a map no instructions are written so it is incorrect here

Rules and orders are also given in books,files,documents not on a map.

Hence only option 1 the most appropriate word for the blank



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