Which of the following sentence is correct?

Which of the following sentence is correct?

• ক. Results suggests that exercise alone may not be enough to eliminate risks associated with too much sitting.
• খ. Results which suggests that exercise alone may not be enough to eliminate risks associated too much sitting.
• গ. Results suggest that exercise alone may not be enough to eliminate risks associated with too much sitting.
• ঘ. Results suggesting that exercise alone may not be enough to eliminate risks associated with too much sitting.