Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: A Randomised, Double Blind, Placebo Controlled, Parallel-group Study With Use of Budesonide/Formoterol "As-needed", or Terbutaline "As-needed" or Regular Use of Budesonide + Terbutaline "As-needed", in Patients With Mild Intermittent Asthma
Brief Summary: 1. The primary objective of this study is:

   * To evaluate the magnitude of the protective effect of the combination of budesonide and formoterol on an as-needed basis compared to the use of terbutaline as-needed on exercise induced bronchoconstriction in adults and adolescents with mild intermittent asthma
2. The secondary objectives of this study are:

   * To evaluate the magnitude of the protective effect of the combination of budesonide and formoterol as-needed compared to regular once daily use of budesonide plus terbutaline as-needed on exercise induced bronchoconstriction in adults and adolescents with mild intermittent asthma
   * To evaluate safety of budesonide/formoterol as-needed, terbutaline as-needed and regular use of budesonide + terbutaline as-needed as terms of adverse event


Options:
A: Arm Label: A; Type: ACTIVE_COMPARATOR; Interventions: Drug: budesonide, Drug: terbutaline | Arm Label: B; Type: ACTIVE_COMPARATOR; Interventions: Drug: terbutaline | Arm Label: C; Type: ACTIVE_COMPARATOR; Interventions: Drug: budesonide/formoterol | Intervention Type: DRUG; Name: budesonide; Assigned to Arm(s): A | Intervention Type: DRUG; Name: terbutaline; Assigned to Arm(s): A, B | Intervention Type: DRUG; Name: budesonide/formoterol; Assigned to Arm(s): C
B: Arm Label: Beclometasone/formoterol (100/6 µg); Type: EXPERIMENTAL; Interventions: Drug: beclometasone /formoterol | Arm Label: salbutamol; Type: ACTIVE_COMPARATOR; Interventions: Drug: Ventolin | Intervention Type: DRUG; Name: Ventolin; Assigned to Arm(s): salbutamol | Intervention Type: DRUG; Name: beclometasone /formoterol; Assigned to Arm(s): Beclometasone/formoterol (100/6 µg)
C: Arm Label: 1; Type: EXPERIMENTAL; Interventions: Drug: budesonide/formoterol (Symbicort) | Arm Label: 2; Type: ACTIVE_COMPARATOR; Interventions: Drug: fluticasone/salmeterol (Advair) | Intervention Type: DRUG; Name: budesonide/formoterol (Symbicort); Assigned to Arm(s): 1 | Intervention Type: DRUG; Name: fluticasone/salmeterol (Advair); Assigned to Arm(s): 2
D: Arm Label: Mometasone then Tiotropium then Placebo; Type: EXPERIMENTAL; Interventions: Drug: Mometasone 220mcg BID, Drug: Tiotropium Respimat 5mcg QD, Drug: Placebo | Arm Label: Mometasone then Placebo then Tiotropium; Type: EXPERIMENTAL; Interventions: Drug: Mometasone 220mcg BID, Drug: Tiotropium Respimat 5mcg QD, Drug: Placebo | Arm Label: Placebo then Mometasone then Tiotropium; Type: EXPERIMENTAL; Interventions: Drug: Mometasone 220mcg BID, Drug: Tiotropium Respimat 5mcg QD, Drug: Placebo | Arm Label: Placebo then Tiotropium then Mometasone; Type: EXPERIMENTAL; Interventions: Drug: Mometasone 220mcg BID, Drug: Tiotropium Respimat 5mcg QD, Drug: Placebo | Arm Label: Tiotropium then Placebo then Mometasone; Type: EXPERIMENTAL; Interventions: Drug: Mometasone 220mcg BID, Drug: Tiotropium Respimat 5mcg QD, Drug: Placebo | Arm Label: Tiotropium then Mometasone then Placebo; Type: EXPERIMENTAL; Interventions: Drug: Mometasone 220mcg BID, Drug: Tiotropium Respimat 5mcg QD, Drug: Placebo | Intervention Type: DRUG; Name: Mometasone 220mcg BID; Assigned to Arm(s): Mometasone then Placebo then Tiotropium, Mometasone then Tiotropium then Placebo, Placebo then Mometasone then Tiotropium, Placebo then Tiotropium then Mometasone, Tiotropium then Mometasone then Placebo, Tiotropium then Placebo then Mometasone | Intervention Type: DRUG; Name: Tiotropium Respimat 5mcg QD; Assigned to Arm(s): Mometasone then Placebo then Tiotropium, Mometasone then Tiotropium then Placebo, Placebo then Mometasone then Tiotropium, Placebo then Tiotropium then Mometasone, Tiotropium then Mometasone then Placebo, Tiotropium then Placebo then Mometasone | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Mometasone then Placebo then Tiotropium, Mometasone then Tiotropium then Placebo, Placebo then Mometasone then Tiotropium, Placebo then Tiotropium then Mometasone, Tiotropium then Mometasone then Placebo, Tiotropium then Placebo then Mometasone

Answer: A