The correct answer is: A. On her birthday Angela was called up by her father.
The other options are incorrect because they do not accurately reflect the meaning of the sentence. Option B, “Angela received a call from her father on her birthday,” is incorrect because it does not specify who called Angela. Option C, “Angela was called up by father on her birthday,” is incorrect because it does not capitalize the word “father.” Option D, “Angela called up her father on her birthday,” is incorrect because it does not match the order of the words in the sentence.
The sentence “Father called up Angela on her birthday” can be paraphrased as “Angela was called up by her father on her birthday.” This means that Angela’s father was the one who initiated the call, and Angela was the one who received the call.