Choose the correct option:
$(1)$ Severe and persistent chest pain is $Angina$ / $Hypertension$.
$(2)$ $Blood$ / $Lymph$ is a white connective tissue.

(A) $(1)$ $Angina$ is characterized by acute chest pain when no enough oxygen is reaching the heart muscle.
$(2)$ $Lymph$ is a colorless fluid containing specialized lymphocytes which are responsible for the immune responses of the body,often referred to as a white connective tissue.