Which of the following expressions correctly uses intensifiers to convey emotion?

A. She seemed very happy.
B. She seemed happy very.
C. She seemed happy suddenly.
D. She seemed happy normally.

The correct expression that uses an intensifier to convey emotion is option A: "She seemed very happy."

Intensifiers are words or phrases that are used to emphasize or strengthen the meaning of other words. In this case, the intensifier "very" is used to intensify the emotion of happiness.

To identify the correct expression, we need to understand the correct placement of intensifiers in a sentence. In English, intensifiers generally come before the adjective they modify. For example, "very happy" instead of "happy very."

Let's analyze the other options to understand why they are incorrect:

B. "She seemed happy very." - This expression does not follow the correct word order because the intensifier "very" should come before the adjective "happy."

C. "She seemed happy suddenly." - Here, the word "suddenly" is an adverb, not an intensifier. Adverbs modify verbs, not adjectives, so it does not function as an intensifier in this context.

D. "She seemed happy normally." - Similarly, the word "normally" is also an adverb, not an intensifier. It expresses the manner or behavior in which someone is happy, rather than intensifying the emotion itself.

To correctly use intensifiers to convey emotion, option A, "She seemed very happy," is the appropriate choice.