A sentence is a group of words that is complete in itself.

There are four main types of sentences:

Simple or declarative sentence- It is used for information purpose.

Command or Imperative sentence- It is used to make requests or give orders, commands etc.

Question or Interrogative Sentence- It is used to ask questions and ends with a question mark(?).

Exclamatory Sentence- It is used to express emotions and ends with an exclamatory mark (!)

An affirmative sentence contains a positive form which can be transformed to negative form without changing the meaning just by changing a few words.

The correct answer is C)Tom was not without love for his mother.

Option C is correct was not without love means with love which also means that Tom loved his mother.

The other options are wrong as the meaning of the given sentence is changed , the subject is not at its place, and Tom loved his mother.