Topic: Linkers or Connectors,

Best Answer Explained in Below-:

In the context of the sentence "Dr. Mary Edwards Walker was a surgeon, soldier, --- fighter for women's rights," we are looking for a conjunction that appropriately connects three distinct roles or identities of the subject, Dr. Mary Edwards Walker. The options provided are 'with,' 'and,' 'of,' and 'also.'

The correct choice, 'and,' serves to link these roles together in a list format, emphasizing that Dr. Walker was not only a surgeon and a soldier, but also a fighter for women's rights. This parallel structure enhances readability and clarity by clearly delineating her multifaceted contributions.

Opting for 'with' would imply a different relationship, suggesting she carried out these roles simultaneously or in conjunction, which alters the meaning and makes the list feel disjointed. 'Of' does not provide the necessary connection and could lead to confusion regarding her functions. Meanwhile, while 'also' introduces an element of addition, it lacks the necessary grammatical structure and flow to properly integrate the listed roles.

Therefore, 'and' is the most appropriate choice as it succinctly conveys that these are three interconnected but distinct aspects of Dr. Walker’s life, reinforcing the richness of her legacy as a pioneer in multiple fields.